mirror of
https://github.com/notherealmarco/coredns-deployment.git
synced 2025-03-14 14:16:16 +01:00
1126 lines
27 KiB
Go
1126 lines
27 KiB
Go
package migration
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import (
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"errors"
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"github.com/coredns/deployment/kubernetes/migration/corefile"
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)
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type plugin struct {
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status string
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replacedBy string
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additional string
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options map[string]option
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action pluginActionFn // action affecting this plugin only
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add serverActionFn // action to add a new plugin to the server block
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downAction pluginActionFn // downgrade action affecting this plugin only
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}
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type option struct {
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status string
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replacedBy string
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additional string
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action optionActionFn // action affecting this option only
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add pluginActionFn // action to add the option to the plugin
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downAction optionActionFn // downgrade action affecting this option only
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}
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type release struct {
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k8sReleases []string
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nextVersion string
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priorVersion string
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dockerImageSHA string
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plugins map[string]plugin // list of plugins with deprecation status and migration actions
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// postProcess is a post processing action to take on the corefile as a whole. Used for complex migration
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// tasks that dont fit well into the modular plugin/option migration framework. For example, when the
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// action on a plugin would need to extend beyond the scope of that plugin (affecting other plugins, or
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// server blocks, etc). e.g. Splitting plugins out into separate server blocks.
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postProcess corefileAction
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// defaultConf holds the default Corefile template packaged with the corresponding k8sReleases.
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// Wildcards are used for fuzzy matching:
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// "*" matches exactly one token
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// "***" matches 0 all remaining tokens on the line
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// Order of server blocks, plugins, and options does not matter.
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// Order of arguments does matter.
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defaultConf string
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}
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type corefileAction func(*corefile.Corefile) (*corefile.Corefile, error)
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type serverActionFn func(*corefile.Server) (*corefile.Server, error)
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type pluginActionFn func(*corefile.Plugin) (*corefile.Plugin, error)
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type optionActionFn func(*corefile.Option) (*corefile.Option, error)
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func removePlugin(*corefile.Plugin) (*corefile.Plugin, error) { return nil, nil }
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func removeOption(*corefile.Option) (*corefile.Option, error) { return nil, nil }
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func renamePlugin(p *corefile.Plugin, to string) (*corefile.Plugin, error) {
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p.Name = to
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return p, nil
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}
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func addToServerBlockWithPlugins(sb *corefile.Server, newPlugin *corefile.Plugin, with []string) (*corefile.Server, error) {
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if len(with) == 0 {
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// add to all blocks
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sb.Plugins = append(sb.Plugins, newPlugin)
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return sb, nil
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}
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for _, p := range sb.Plugins {
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for _, w := range with {
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if w == p.Name {
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// add to this block
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sb.Plugins = append(sb.Plugins, newPlugin)
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return sb, nil
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}
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}
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}
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return sb, nil
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}
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func addToKubernetesServerBlocks(sb *corefile.Server, newPlugin *corefile.Plugin) (*corefile.Server, error) {
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return addToServerBlockWithPlugins(sb, newPlugin, []string{"kubernetes"})
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}
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func addToForwardingServerBlocks(sb *corefile.Server, newPlugin *corefile.Plugin) (*corefile.Server, error) {
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return addToServerBlockWithPlugins(sb, newPlugin, []string{"forward", "proxy"})
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}
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func addToAllServerBlocks(sb *corefile.Server, newPlugin *corefile.Plugin) (*corefile.Server, error) {
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return addToServerBlockWithPlugins(sb, newPlugin, []string{})
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}
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var Versions = map[string]release{
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"1.5.0": {
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priorVersion: "1.4.0",
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dockerImageSHA: "e83beb5e43f8513fa735e77ffc5859640baea30a882a11cc75c4c3244a737d3c",
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plugins: map[string]plugin{
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"errors": {
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options: map[string]option{
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"consolidate": {},
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},
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},
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"log": {
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options: map[string]option{
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"class": {},
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},
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},
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"health": {},
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"ready": {
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status: newdefault,
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add: func(c *corefile.Server) (*corefile.Server, error) {
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return addToKubernetesServerBlocks(c, &corefile.Plugin{Name: "ready"})
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},
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downAction: removePlugin,
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},
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"autopath": {},
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"kubernetes": {
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options: map[string]option{
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"resyncperiod": {
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status: deprecated,
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action: removeOption,
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},
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"endpoint": {
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status: ignored,
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action: useFirstArgumentOnly,
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},
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"tls": {},
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"kubeconfig": {},
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"namespaces": {},
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"labels": {},
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"pods": {},
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"endpoint_pod_names": {},
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"upstream": {
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status: ignored,
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action: removeOption,
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},
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"ttl": {},
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"noendpoints": {},
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"transfer": {},
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"fallthrough": {},
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"ignore": {},
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},
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},
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"k8s_external": {
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options: map[string]option{
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"apex": {},
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"ttl": {},
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},
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},
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"prometheus": {},
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"proxy": {
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status: removed,
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replacedBy: "forward",
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action: proxyToForwardPluginAction,
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options: proxyToForwardOptionsMigrations,
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},
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"forward": {
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options: map[string]option{
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"except": {},
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"force_tcp": {},
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"prefer_udp": {},
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"expire": {},
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"max_fails": {},
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"tls": {},
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"tls_servername": {},
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"policy": {},
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"health_check": {},
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},
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},
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"cache": {
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options: map[string]option{
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"success": {},
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"denial": {},
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"prefetch": {},
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},
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},
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"loop": {},
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"reload": {},
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"loadbalance": {},
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},
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postProcess: breakForwardStubDomainsIntoServerBlocks,
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},
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"1.4.0": {
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nextVersion: "1.5.0",
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priorVersion: "1.3.1",
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dockerImageSHA: "70a92e9f6fc604f9b629ca331b6135287244a86612f550941193ec7e12759417",
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plugins: map[string]plugin{
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"errors": {
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options: map[string]option{
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"consolidate": {},
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},
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},
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"log": {
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options: map[string]option{
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"class": {},
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},
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},
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"health": {},
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"autopath": {},
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"kubernetes": {
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options: map[string]option{
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"resyncperiod": {},
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"endpoint": {
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status: ignored,
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action: useFirstArgumentOnly,
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},
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"tls": {},
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"kubeconfig": {},
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"namespaces": {},
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"labels": {},
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"pods": {},
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"endpoint_pod_names": {},
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"upstream": {
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status: deprecated,
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action: removeOption,
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},
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"ttl": {},
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"noendpoints": {},
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"transfer": {},
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"fallthrough": {},
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"ignore": {},
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},
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},
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"k8s_external": {
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options: map[string]option{
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"apex": {},
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"ttl": {},
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},
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},
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"prometheus": {},
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"proxy": {
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status: deprecated,
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replacedBy: "forward",
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action: proxyToForwardPluginAction,
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options: proxyToForwardOptionsMigrations,
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},
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"forward": {
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options: map[string]option{
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"except": {},
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"force_tcp": {},
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"prefer_udp": {},
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"expire": {},
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"max_fails": {},
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"tls": {},
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"tls_servername": {},
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"policy": {},
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"health_check": {},
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},
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},
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"cache": {
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options: map[string]option{
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"success": {},
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"denial": {},
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"prefetch": {},
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},
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},
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"loop": {},
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"reload": {},
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"loadbalance": {},
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},
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postProcess: breakForwardStubDomainsIntoServerBlocks,
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},
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"1.3.1": {
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nextVersion: "1.4.0",
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priorVersion: "1.3.0",
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k8sReleases: []string{"1.15", "1.14"},
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dockerImageSHA: "02382353821b12c21b062c59184e227e001079bb13ebd01f9d3270ba0fcbf1e4",
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defaultConf: `.:53 {
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errors
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health
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kubernetes * *** {
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pods insecure
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upstream
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fallthrough in-addr.arpa ip6.arpa
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}
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prometheus :9153
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forward . *
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cache 30
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loop
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reload
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loadbalance
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}`,
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plugins: map[string]plugin{
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"errors": {
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options: map[string]option{
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"consolidate": {},
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},
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},
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"log": {
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options: map[string]option{
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"class": {},
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},
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},
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"health": {},
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"autopath": {},
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"kubernetes": {
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options: map[string]option{
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"resyncperiod": {},
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"endpoint": {
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status: deprecated,
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action: useFirstArgumentOnly,
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},
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"tls": {},
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"kubeconfig": {},
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"namespaces": {},
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"labels": {},
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"pods": {},
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"endpoint_pod_names": {},
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"upstream": {},
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"ttl": {},
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"noendpoints": {},
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"transfer": {},
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"fallthrough": {},
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"ignore": {},
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},
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},
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"k8s_external": {
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options: map[string]option{
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"apex": {},
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"ttl": {},
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},
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},
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"prometheus": {},
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"proxy": {
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options: map[string]option{
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"policy": {},
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"fail_timeout": {},
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"max_fails": {},
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"health_check": {},
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"except": {},
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"spray": {},
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"protocol": {},
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},
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},
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"forward": {
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options: map[string]option{
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"except": {},
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"force_tcp": {},
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"prefer_udp": {},
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"expire": {},
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"max_fails": {},
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"tls": {},
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"tls_servername": {},
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"policy": {},
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"health_check": {},
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},
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},
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"cache": {
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options: map[string]option{
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"success": {},
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"denial": {},
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"prefetch": {},
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},
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},
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"loop": {},
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"reload": {},
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"loadbalance": {},
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},
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},
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"1.3.0": {
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nextVersion: "1.3.1",
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priorVersion: "1.2.6",
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dockerImageSHA: "e030773c7fee285435ed7fc7623532ee54c4c1c4911fb24d95cd0170a8a768bc",
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plugins: map[string]plugin{
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"errors": {
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options: map[string]option{
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"consolidate": {},
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},
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},
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"log": {
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options: map[string]option{
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"class": {},
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},
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},
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"health": {},
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"autopath": {},
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"kubernetes": {
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options: map[string]option{
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"resyncperiod": {},
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"endpoint": {},
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"tls": {},
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"kubeconfig": {},
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"namespaces": {},
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"labels": {},
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"pods": {},
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"endpoint_pod_names": {},
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"upstream": {},
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"ttl": {},
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"noendpoints": {},
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"transfer": {},
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"fallthrough": {},
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"ignore": {},
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},
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},
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"k8s_external": {
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downAction: removePlugin,
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options: map[string]option{
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"apex": {},
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"ttl": {},
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},
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},
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"prometheus": {},
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"proxy": {
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options: map[string]option{
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"policy": {},
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"fail_timeout": {},
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"max_fails": {},
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"health_check": {},
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"except": {},
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"spray": {},
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"protocol": {},
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},
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},
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"forward": {
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options: map[string]option{
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"except": {},
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"force_tcp": {},
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"prefer_udp": {},
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"expire": {},
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"max_fails": {},
|
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"tls": {},
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"tls_servername": {},
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"policy": {},
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"health_check": {},
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},
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},
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"cache": {
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options: map[string]option{
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"success": {},
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"denial": {},
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"prefetch": {},
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},
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},
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"loop": {},
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"reload": {},
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"loadbalance": {},
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},
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},
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"1.2.6": {
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nextVersion: "1.3.0",
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priorVersion: "1.2.5",
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k8sReleases: []string{"1.13"},
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dockerImageSHA: "81936728011c0df9404cb70b95c17bbc8af922ec9a70d0561a5d01fefa6ffa51",
|
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defaultConf: `.:53 {
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errors
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|
health
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|
kubernetes * *** {
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pods insecure
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|
upstream
|
|
fallthrough in-addr.arpa ip6.arpa
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|
}
|
|
prometheus :9153
|
|
proxy . *
|
|
cache 30
|
|
loop
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|
reload
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|
loadbalance
|
|
}`,
|
|
plugins: map[string]plugin{
|
|
"errors": {
|
|
options: map[string]option{
|
|
"consolidate": {},
|
|
},
|
|
},
|
|
"log": {
|
|
options: map[string]option{
|
|
"class": {},
|
|
},
|
|
},
|
|
"health": {},
|
|
"autopath": {},
|
|
"kubernetes": {
|
|
options: map[string]option{
|
|
"resyncperiod": {},
|
|
"endpoint": {},
|
|
"tls": {},
|
|
"kubeconfig": {},
|
|
"namespaces": {},
|
|
"labels": {},
|
|
"pods": {},
|
|
"endpoint_pod_names": {},
|
|
"upstream": {},
|
|
"ttl": {},
|
|
"noendpoints": {},
|
|
"transfer": {},
|
|
"fallthrough": {},
|
|
"ignore": {},
|
|
},
|
|
},
|
|
"prometheus": {},
|
|
"proxy": {
|
|
options: map[string]option{
|
|
"policy": {},
|
|
"fail_timeout": {},
|
|
"max_fails": {},
|
|
"health_check": {},
|
|
"except": {},
|
|
"spray": {},
|
|
"protocol": {},
|
|
},
|
|
},
|
|
"forward": {
|
|
options: map[string]option{
|
|
"except": {},
|
|
"force_tcp": {},
|
|
"prefer_udp": {},
|
|
"expire": {},
|
|
"max_fails": {},
|
|
"tls": {},
|
|
"tls_servername": {},
|
|
"policy": {},
|
|
"health_check": {},
|
|
},
|
|
},
|
|
"cache": {
|
|
options: map[string]option{
|
|
"success": {},
|
|
"denial": {},
|
|
"prefetch": {},
|
|
},
|
|
},
|
|
"loop": {},
|
|
"reload": {},
|
|
"loadbalance": {},
|
|
},
|
|
},
|
|
"1.2.5": {
|
|
nextVersion: "1.2.6",
|
|
priorVersion: "1.2.4",
|
|
dockerImageSHA: "33c8da20b887ae12433ec5c40bfddefbbfa233d5ce11fb067122e68af30291d6",
|
|
plugins: map[string]plugin{
|
|
"errors": {},
|
|
"log": {
|
|
options: map[string]option{
|
|
"class": {},
|
|
},
|
|
},
|
|
"health": {},
|
|
"autopath": {},
|
|
"kubernetes": {
|
|
options: map[string]option{
|
|
"resyncperiod": {},
|
|
"endpoint": {},
|
|
"tls": {},
|
|
"kubeconfig": {},
|
|
"namespaces": {},
|
|
"labels": {},
|
|
"pods": {},
|
|
"endpoint_pod_names": {},
|
|
"upstream": {},
|
|
"ttl": {},
|
|
"noendpoints": {},
|
|
"transfer": {},
|
|
"fallthrough": {},
|
|
"ignore": {},
|
|
},
|
|
},
|
|
"prometheus": {},
|
|
"proxy": {
|
|
options: map[string]option{
|
|
"policy": {},
|
|
"fail_timeout": {},
|
|
"max_fails": {},
|
|
"health_check": {},
|
|
"except": {},
|
|
"spray": {},
|
|
"protocol": {},
|
|
},
|
|
},
|
|
"forward": {
|
|
options: map[string]option{
|
|
"except": {},
|
|
"force_tcp": {},
|
|
"prefer_udp": {},
|
|
"expire": {},
|
|
"max_fails": {},
|
|
"tls": {},
|
|
"tls_servername": {},
|
|
"policy": {},
|
|
"health_check": {},
|
|
},
|
|
},
|
|
"cache": {
|
|
options: map[string]option{
|
|
"success": {},
|
|
"denial": {},
|
|
"prefetch": {},
|
|
},
|
|
},
|
|
"loop": {},
|
|
"reload": {},
|
|
"loadbalance": {},
|
|
},
|
|
},
|
|
"1.2.4": {
|
|
nextVersion: "1.2.5",
|
|
priorVersion: "1.2.3",
|
|
dockerImageSHA: "a0d40ad961a714c699ee7b61b77441d165f6252f9fb84ac625d04a8d8554c0ec",
|
|
plugins: map[string]plugin{
|
|
"errors": {},
|
|
"log": {
|
|
options: map[string]option{
|
|
"class": {},
|
|
},
|
|
},
|
|
"health": {},
|
|
"autopath": {},
|
|
"kubernetes": {
|
|
options: map[string]option{
|
|
"resyncperiod": {},
|
|
"endpoint": {},
|
|
"tls": {},
|
|
"kubeconfig": {},
|
|
"namespaces": {},
|
|
"labels": {},
|
|
"pods": {},
|
|
"endpoint_pod_names": {},
|
|
"upstream": {},
|
|
"ttl": {},
|
|
"noendpoints": {},
|
|
"transfer": {},
|
|
"fallthrough": {},
|
|
"ignore": {},
|
|
},
|
|
},
|
|
"prometheus": {},
|
|
"proxy": {
|
|
options: map[string]option{
|
|
"policy": {},
|
|
"fail_timeout": {},
|
|
"max_fails": {},
|
|
"health_check": {},
|
|
"except": {},
|
|
"spray": {},
|
|
"protocol": {},
|
|
},
|
|
},
|
|
"forward": {
|
|
options: map[string]option{
|
|
"except": {},
|
|
"force_tcp": {},
|
|
"prefer_udp": {},
|
|
"expire": {},
|
|
"max_fails": {},
|
|
"tls": {},
|
|
"tls_servername": {},
|
|
"policy": {},
|
|
"health_check": {},
|
|
},
|
|
},
|
|
"cache": {
|
|
options: map[string]option{
|
|
"success": {},
|
|
"denial": {},
|
|
"prefetch": {},
|
|
},
|
|
},
|
|
"loop": {},
|
|
"reload": {},
|
|
"loadbalance": {},
|
|
},
|
|
},
|
|
"1.2.3": {
|
|
nextVersion: "1.2.4",
|
|
priorVersion: "1.2.2",
|
|
dockerImageSHA: "12f3cab301c826978fac736fd40aca21ac023102fd7f4aa6b4341ae9ba89e90e",
|
|
plugins: map[string]plugin{
|
|
"errors": {},
|
|
"log": {
|
|
options: map[string]option{
|
|
"class": {},
|
|
},
|
|
},
|
|
"health": {},
|
|
"autopath": {},
|
|
"kubernetes": {
|
|
options: map[string]option{
|
|
"resyncperiod": {},
|
|
"endpoint": {},
|
|
"tls": {},
|
|
"kubeconfig": {},
|
|
"namespaces": {},
|
|
"labels": {},
|
|
"pods": {},
|
|
"endpoint_pod_names": {},
|
|
"upstream": {},
|
|
"ttl": {},
|
|
"noendpoints": {},
|
|
"transfer": {},
|
|
"fallthrough": {},
|
|
"ignore": {},
|
|
},
|
|
},
|
|
"prometheus": {},
|
|
"proxy": {
|
|
options: map[string]option{
|
|
"policy": {},
|
|
"fail_timeout": {},
|
|
"max_fails": {},
|
|
"health_check": {},
|
|
"except": {},
|
|
"spray": {},
|
|
"protocol": {},
|
|
},
|
|
},
|
|
"forward": {
|
|
options: map[string]option{
|
|
"except": {},
|
|
"force_tcp": {},
|
|
"prefer_udp": {},
|
|
"expire": {},
|
|
"max_fails": {},
|
|
"tls": {},
|
|
"tls_servername": {},
|
|
"policy": {},
|
|
"health_check": {},
|
|
},
|
|
},
|
|
"cache": {
|
|
options: map[string]option{
|
|
"success": {},
|
|
"denial": {},
|
|
"prefetch": {},
|
|
},
|
|
},
|
|
"loop": {},
|
|
"reload": {},
|
|
"loadbalance": {},
|
|
},
|
|
},
|
|
"1.2.2": {
|
|
nextVersion: "1.2.3",
|
|
priorVersion: "1.2.1",
|
|
k8sReleases: []string{"1.12"},
|
|
dockerImageSHA: "3e2be1cec87aca0b74b7668bbe8c02964a95a402e45ceb51b2252629d608d03a",
|
|
defaultConf: `.:53 {
|
|
errors
|
|
health
|
|
kubernetes * *** {
|
|
pods insecure
|
|
upstream
|
|
fallthrough in-addr.arpa ip6.arpa
|
|
}
|
|
prometheus :9153
|
|
proxy . *
|
|
cache 30
|
|
loop
|
|
reload
|
|
loadbalance
|
|
}`,
|
|
plugins: map[string]plugin{
|
|
"errors": {},
|
|
"log": {
|
|
options: map[string]option{
|
|
"class": {},
|
|
},
|
|
},
|
|
"health": {},
|
|
"autopath": {},
|
|
"kubernetes": {
|
|
options: map[string]option{
|
|
"resyncperiod": {},
|
|
"endpoint": {},
|
|
"tls": {},
|
|
"namespaces": {},
|
|
"labels": {},
|
|
"pods": {},
|
|
"endpoint_pod_names": {},
|
|
"upstream": {},
|
|
"ttl": {},
|
|
"noendpoints": {},
|
|
"transfer": {},
|
|
"fallthrough": {},
|
|
"ignore": {},
|
|
},
|
|
},
|
|
"prometheus": {},
|
|
"proxy": {
|
|
options: map[string]option{
|
|
"policy": {},
|
|
"fail_timeout": {},
|
|
"max_fails": {},
|
|
"health_check": {},
|
|
"except": {},
|
|
"spray": {},
|
|
"protocol": {},
|
|
},
|
|
},
|
|
"forward": {
|
|
options: map[string]option{
|
|
"except": {},
|
|
"force_tcp": {},
|
|
"prefer_udp": {},
|
|
"expire": {},
|
|
"max_fails": {},
|
|
"tls": {},
|
|
"tls_servername": {},
|
|
"policy": {},
|
|
"health_check": {},
|
|
},
|
|
},
|
|
"cache": {
|
|
options: map[string]option{
|
|
"success": {},
|
|
"denial": {},
|
|
"prefetch": {},
|
|
},
|
|
},
|
|
"loop": {},
|
|
"reload": {},
|
|
"loadbalance": {},
|
|
},
|
|
},
|
|
"1.2.1": {
|
|
nextVersion: "1.2.2",
|
|
priorVersion: "1.2.0",
|
|
dockerImageSHA: "fb129c6a7c8912bc6d9cc4505e1f9007c5565ceb1aa6369750e60cc79771a244",
|
|
plugins: map[string]plugin{
|
|
"errors": {},
|
|
"log": {
|
|
options: map[string]option{
|
|
"class": {},
|
|
},
|
|
},
|
|
"health": {},
|
|
"autopath": {},
|
|
"kubernetes": {
|
|
options: map[string]option{
|
|
"resyncperiod": {},
|
|
"endpoint": {},
|
|
"tls": {},
|
|
"namespaces": {},
|
|
"labels": {},
|
|
"pods": {},
|
|
"endpoint_pod_names": {},
|
|
"upstream": {},
|
|
"ttl": {},
|
|
"noendpoints": {},
|
|
"transfer": {},
|
|
"fallthrough": {},
|
|
"ignore": {},
|
|
},
|
|
},
|
|
"prometheus": {},
|
|
"proxy": {
|
|
options: map[string]option{
|
|
"policy": {},
|
|
"fail_timeout": {},
|
|
"max_fails": {},
|
|
"health_check": {},
|
|
"except": {},
|
|
"spray": {},
|
|
"protocol": {},
|
|
},
|
|
},
|
|
"forward": {
|
|
options: map[string]option{
|
|
"except": {},
|
|
"force_tcp": {},
|
|
"prefer_udp": {},
|
|
"expire": {},
|
|
"max_fails": {},
|
|
"tls": {},
|
|
"tls_servername": {},
|
|
"policy": {},
|
|
"health_check": {},
|
|
},
|
|
},
|
|
"cache": {
|
|
options: map[string]option{
|
|
"success": {},
|
|
"denial": {},
|
|
"prefetch": {},
|
|
},
|
|
},
|
|
"loop": {
|
|
status: newdefault,
|
|
add: func(s *corefile.Server) (*corefile.Server, error) {
|
|
return addToForwardingServerBlocks(s, &corefile.Plugin{Name: "loop"})
|
|
},
|
|
downAction: removePlugin,
|
|
},
|
|
"reload": {},
|
|
"loadbalance": {},
|
|
},
|
|
},
|
|
"1.2.0": {
|
|
nextVersion: "1.2.1",
|
|
priorVersion: "1.1.4",
|
|
dockerImageSHA: "ae69a32f8cc29a3e2af9628b6473f24d3e977950a2cb62ce8911478a61215471",
|
|
plugins: map[string]plugin{
|
|
"errors": {},
|
|
"log": {
|
|
options: map[string]option{
|
|
"class": {},
|
|
},
|
|
},
|
|
"health": {},
|
|
"autopath": {},
|
|
"kubernetes": {
|
|
options: map[string]option{
|
|
"resyncperiod": {},
|
|
"endpoint": {},
|
|
"tls": {},
|
|
"namespaces": {},
|
|
"labels": {},
|
|
"pods": {},
|
|
"endpoint_pod_names": {},
|
|
"upstream": {},
|
|
"ttl": {},
|
|
"noendpoints": {},
|
|
"transfer": {},
|
|
"fallthrough": {},
|
|
"ignore": {},
|
|
},
|
|
},
|
|
"prometheus": {},
|
|
"proxy": {
|
|
options: map[string]option{
|
|
"policy": {},
|
|
"fail_timeout": {},
|
|
"max_fails": {},
|
|
"health_check": {},
|
|
"except": {},
|
|
"spray": {},
|
|
"protocol": {
|
|
status: removed,
|
|
action: proxyRemoveHttpsGoogleProtocol,
|
|
},
|
|
},
|
|
},
|
|
"forward": {
|
|
options: map[string]option{
|
|
"except": {},
|
|
"force_tcp": {},
|
|
"prefer_udp": {},
|
|
"expire": {},
|
|
"max_fails": {},
|
|
"tls": {},
|
|
"tls_servername": {},
|
|
"policy": {},
|
|
"health_check": {},
|
|
},
|
|
},
|
|
"cache": {
|
|
options: map[string]option{
|
|
"success": {},
|
|
"denial": {},
|
|
"prefetch": {},
|
|
},
|
|
},
|
|
"reload": {},
|
|
"loadbalance": {},
|
|
},
|
|
},
|
|
"1.1.4": {
|
|
nextVersion: "1.2.0",
|
|
priorVersion: "1.1.3",
|
|
dockerImageSHA: "463c7021141dd3bfd4a75812f4b735ef6aadc0253a128f15ffe16422abe56e50",
|
|
plugins: map[string]plugin{
|
|
"errors": {},
|
|
"log": {
|
|
options: map[string]option{
|
|
"class": {},
|
|
},
|
|
},
|
|
"health": {},
|
|
"autopath": {},
|
|
"kubernetes": {
|
|
options: map[string]option{
|
|
"resyncperiod": {},
|
|
"endpoint": {},
|
|
"tls": {},
|
|
"namespaces": {},
|
|
"labels": {},
|
|
"pods": {},
|
|
"endpoint_pod_names": {},
|
|
"upstream": {},
|
|
"ttl": {},
|
|
"noendpoints": {},
|
|
"transfer": {},
|
|
"fallthrough": {},
|
|
"ignore": {},
|
|
},
|
|
},
|
|
"prometheus": {},
|
|
"proxy": {
|
|
options: map[string]option{
|
|
"policy": {},
|
|
"fail_timeout": {},
|
|
"max_fails": {},
|
|
"health_check": {},
|
|
"except": {},
|
|
"spray": {},
|
|
"protocol": {
|
|
status: ignored,
|
|
action: proxyRemoveHttpsGoogleProtocol,
|
|
},
|
|
},
|
|
},
|
|
"forward": {
|
|
options: map[string]option{
|
|
"except": {},
|
|
"force_tcp": {},
|
|
"expire": {},
|
|
"max_fails": {},
|
|
"tls": {},
|
|
"tls_servername": {},
|
|
"policy": {},
|
|
"health_check": {},
|
|
},
|
|
},
|
|
"cache": {
|
|
options: map[string]option{
|
|
"success": {},
|
|
"denial": {},
|
|
"prefetch": {},
|
|
},
|
|
},
|
|
"reload": {},
|
|
"loadbalance": {},
|
|
},
|
|
},
|
|
"1.1.3": {
|
|
nextVersion: "1.1.4",
|
|
k8sReleases: []string{"1.11"},
|
|
dockerImageSHA: "a5dd18e048983c7401e15648b55c3ef950601a86dd22370ef5dfc3e72a108aaa",
|
|
defaultConf: `.:53 {
|
|
errors
|
|
health
|
|
kubernetes * *** {
|
|
pods insecure
|
|
upstream
|
|
fallthrough in-addr.arpa ip6.arpa
|
|
}
|
|
prometheus :9153
|
|
proxy . *
|
|
cache 30
|
|
reload
|
|
}`},
|
|
}
|
|
|
|
var proxyToForwardOptionsMigrations = map[string]option{
|
|
"policy": {
|
|
action: func(o *corefile.Option) (*corefile.Option, error) {
|
|
if len(o.Args) == 2 && o.Args[1] == "least_conn" {
|
|
o.Name = "force_tcp"
|
|
o.Args = nil
|
|
}
|
|
return o, nil
|
|
},
|
|
},
|
|
"except": {},
|
|
"fail_timeout": {action: removeOption},
|
|
"max_fails": {action: removeOption},
|
|
"health_check": {action: removeOption},
|
|
"spray": {action: removeOption},
|
|
"protocol": {
|
|
action: func(o *corefile.Option) (*corefile.Option, error) {
|
|
if len(o.Args) >= 2 && o.Args[1] == "force_tcp" {
|
|
o.Name = "force_tcp"
|
|
o.Args = nil
|
|
return o, nil
|
|
}
|
|
return nil, nil
|
|
},
|
|
},
|
|
}
|
|
|
|
var proxyToForwardPluginAction = func(p *corefile.Plugin) (*corefile.Plugin, error) {
|
|
return renamePlugin(p, "forward")
|
|
}
|
|
|
|
var useFirstArgumentOnly = func(o *corefile.Option) (*corefile.Option, error) {
|
|
if len(o.Args) < 1 {
|
|
return o, nil
|
|
}
|
|
o.Args = o.Args[:1]
|
|
return o, nil
|
|
}
|
|
|
|
var proxyRemoveHttpsGoogleProtocol = func(o *corefile.Option) (*corefile.Option, error) {
|
|
if len(o.Args) > 0 && o.Args[0] == "https_google" {
|
|
return nil, nil
|
|
}
|
|
return o, nil
|
|
}
|
|
|
|
func breakForwardStubDomainsIntoServerBlocks(cf *corefile.Corefile) (*corefile.Corefile, error) {
|
|
for _, sb := range cf.Servers {
|
|
for j, fwd := range sb.Plugins {
|
|
if fwd.Name != "forward" {
|
|
continue
|
|
}
|
|
if len(fwd.Args) == 0 {
|
|
return nil, errors.New("found invalid forward plugin declaration")
|
|
}
|
|
if fwd.Args[0] == "." {
|
|
// dont move the default upstream
|
|
continue
|
|
}
|
|
if len(sb.DomPorts) != 1 {
|
|
return cf, errors.New("unhandled migration of multi-domain/port server block")
|
|
}
|
|
if sb.DomPorts[0] != "." && sb.DomPorts[0] != ".:53" {
|
|
return cf, errors.New("unhandled migration of non-default domain/port server block")
|
|
}
|
|
|
|
newSb := &corefile.Server{} // create a new server block
|
|
newSb.DomPorts = []string{fwd.Args[0]} // copy the forward zone to the server block domain
|
|
fwd.Args[0] = "." // the plugin's zone changes to "." for brevity
|
|
newSb.Plugins = append(newSb.Plugins, fwd) // add the plugin to its new server block
|
|
|
|
// Add appropriate addtl plugins to new server block
|
|
newSb.Plugins = append(newSb.Plugins, &corefile.Plugin{Name: "loop"})
|
|
newSb.Plugins = append(newSb.Plugins, &corefile.Plugin{Name: "errors"})
|
|
newSb.Plugins = append(newSb.Plugins, &corefile.Plugin{Name: "cache", Args: []string{"30"}})
|
|
|
|
//add new server block to corefile
|
|
cf.Servers = append(cf.Servers, newSb)
|
|
|
|
//remove the forward plugin from the original server block
|
|
sb.Plugins = append(sb.Plugins[:j], sb.Plugins[j+1:]...)
|
|
}
|
|
}
|
|
return cf, nil
|
|
}
|