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Merge pull request #5 from fffunke/master
Recursive config files || refactor structs || configurable port
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,4 @@ | ||
| /.idea | ||
| /mittnite | ||
| /dist | ||
| /dist | ||
| examples/mittnite.d/local.hcl |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| package cmd | ||
|
|
||
| import ( | ||
| log "github.com/sirupsen/logrus" | ||
| "github.com/spf13/cobra" | ||
| ) | ||
|
|
||
| var configDir string | ||
|
|
||
| func init() { | ||
| rootCmd.PersistentFlags().StringVarP(&configDir, "config-dir", "c", "/etc/mittnite.d", "") | ||
| } | ||
|
|
||
| var rootCmd = &cobra.Command{ | ||
| Use: "up", | ||
| Short: "Mittnite - Smart init system for containers", | ||
| Long: "Mittnite is a small, but smart init system designed for usage as `ENTRYPOINT` in container images.", | ||
| Run: func(cmd *cobra.Command, args []string) { | ||
| log.Warn("Using mittnite without 'up'. This will change in future releases!") | ||
| up.Run(cmd, args) | ||
| }, | ||
| } | ||
|
|
||
| func Execute() { | ||
| if err := rootCmd.Execute(); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| package cmd | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "github.com/hashicorp/hcl" | ||
| "github.com/mittwald/mittnite/internal/types" | ||
| "github.com/mittwald/mittnite/pkg/files" | ||
| "github.com/mittwald/mittnite/pkg/probe" | ||
| "github.com/mittwald/mittnite/pkg/proc" | ||
| log "github.com/sirupsen/logrus" | ||
| "github.com/spf13/cobra" | ||
| "io/ioutil" | ||
| "os" | ||
| "os/signal" | ||
| "path/filepath" | ||
| "strings" | ||
| ) | ||
|
|
||
| var ( | ||
| Version string | ||
| Commit string | ||
| BuiltAt string | ||
| ) | ||
|
|
||
| func init() { | ||
| rootCmd.AddCommand(up) | ||
| } | ||
|
|
||
| var up = &cobra.Command{ | ||
| Use: "up", | ||
| Run: func(cmd *cobra.Command, args []string) { | ||
|
|
||
| log.Infof("mittnite process manager, version %s (commit %s), built at %s", Version, Commit, BuiltAt) | ||
| log.Infof("looking for configuration files in %s", configDir) | ||
|
|
||
| configDir = strings.TrimRight(configDir, "/") | ||
|
|
||
| var matches []string | ||
|
|
||
| err := filepath.Walk(configDir, func(path string, info os.FileInfo, err error) error { | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| if strings.HasSuffix(info.Name(), "hcl") { | ||
| matches = append(matches, path) | ||
| } | ||
| return nil | ||
| }) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
||
| if len(matches) == 0 { | ||
| log.Fatalf("could not find any configuration files in %s", configDir) | ||
| } | ||
|
|
||
| ignitionConfig := types.IgnitionConfig{} | ||
|
|
||
| for _, m := range matches { | ||
| log.Infof("found config file: %s", m) | ||
|
|
||
| contents, err := ioutil.ReadFile(m) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| err = hcl.Unmarshal(contents, &ignitionConfig) | ||
| if err != nil { | ||
| err = fmt.Errorf("could not parse configuration file %s: %s", m, err.Error()) | ||
| panic(err) | ||
| } | ||
| } | ||
|
|
||
| err = files.RenderConfigurationFiles(ignitionConfig.Files) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| signals := make(chan os.Signal) | ||
| signal.Notify(signals) | ||
|
|
||
| readinessSignals := make(chan os.Signal, 1) | ||
| probeSignals := make(chan os.Signal, 1) | ||
| procSignals := make(chan os.Signal, 1) | ||
|
|
||
| go func() { | ||
| for s := range signals { | ||
| log.Infof("received event %s", s.String()) | ||
|
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| readinessSignals <- s | ||
| probeSignals <- s | ||
| procSignals <- s | ||
| } | ||
| }() | ||
|
|
||
| probeHandler, _ := probe.NewProbeHandler(&ignitionConfig) | ||
|
|
||
| go func() { | ||
| err := probe.RunProbeServer(probeHandler, probeSignals) | ||
| if err != nil { | ||
| log.Fatalf("probe server stopped with error: %s", err) | ||
| panic(err) | ||
| } else { | ||
| log.Info("probe server stopped without error") | ||
| } | ||
| }() | ||
|
|
||
| err = probeHandler.Wait(readinessSignals) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| err = proc.RunServices(&ignitionConfig, procSignals) | ||
| if err != nil { | ||
| log.Fatalf("service runner stopped with error: %s", err) | ||
| } else { | ||
| log.Print("service runner stopped without error") | ||
| } | ||
| }, | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| job sleep { | ||
| command = "/bin/sleep" | ||
| args = ["500s"] | ||
| canFail = true | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| probe redis { | ||
| wait = true | ||
| redis { | ||
| host = { | ||
| url = "localhost" | ||
| port = 6379 | ||
| } | ||
| } | ||
| } |
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