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Add "config edit" and "config status" for managing dynamic config (#315)
* Adds "k0sctl config edit" and "k0sctl config status" The subcommands are used to manage k0s dynamic config
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Original file line number | Diff line number | Diff line change |
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package cmd | ||
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import ( | ||
"fmt" | ||
"os" | ||
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"github.com/k0sproject/k0sctl/analytics" | ||
"github.com/k0sproject/k0sctl/pkg/apis/k0sctl.k0sproject.io/v1beta1" | ||
"github.com/k0sproject/rig/exec" | ||
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osexec "os/exec" | ||
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"github.com/mattn/go-isatty" | ||
"github.com/urfave/cli/v2" | ||
) | ||
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func shellEditor() (string, error) { | ||
if v := os.Getenv("VISUAL"); v != "" { | ||
return v, nil | ||
} | ||
if v := os.Getenv("EDITOR"); v != "" { | ||
return v, nil | ||
} | ||
if path, err := osexec.LookPath("vi"); err == nil { | ||
return path, nil | ||
} | ||
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return "", fmt.Errorf("could not detect shell editor ($VISUAL, $EDITOR)") | ||
} | ||
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var configEditCommand = &cli.Command{ | ||
Name: "edit", | ||
Usage: "Edit k0s dynamic config in SHELL's default editor", | ||
Flags: []cli.Flag{ | ||
configFlag, | ||
debugFlag, | ||
traceFlag, | ||
redactFlag, | ||
analyticsFlag, | ||
upgradeCheckFlag, | ||
}, | ||
Before: actions(initLogging, startCheckUpgrade, initConfig, initAnalytics), | ||
After: actions(reportCheckUpgrade, closeAnalytics), | ||
Action: func(ctx *cli.Context) error { | ||
if !isatty.IsTerminal(os.Stdout.Fd()) { | ||
return fmt.Errorf("output is not a terminal") | ||
} | ||
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if err := analytics.Client.Publish("config-edit-start", map[string]interface{}{}); err != nil { | ||
return err | ||
} | ||
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editor, err := shellEditor() | ||
if err != nil { | ||
return err | ||
} | ||
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c := ctx.Context.Value(ctxConfigKey{}).(*v1beta1.Cluster) | ||
h := c.Spec.K0sLeader() | ||
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if err := h.Connect(); err != nil { | ||
return fmt.Errorf("failed to connect: %w", err) | ||
} | ||
defer h.Disconnect() | ||
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if err := h.ResolveConfigurer(); err != nil { | ||
return err | ||
} | ||
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oldCfg, err := h.ExecOutput(h.Configurer.K0sCmdf("kubectl -n kube-system get clusterconfig k0s -o yaml"), exec.Sudo(h)) | ||
if err != nil { | ||
return fmt.Errorf("%s: %w", h, err) | ||
} | ||
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tmpFile, err := os.CreateTemp("", "k0s-config.*.yaml") | ||
if err != nil { | ||
return err | ||
} | ||
defer func() { _ = os.Remove(tmpFile.Name()) }() | ||
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if _, err := tmpFile.WriteString(oldCfg); err != nil { | ||
return err | ||
} | ||
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if err := tmpFile.Close(); err != nil { | ||
return err | ||
} | ||
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cmd := osexec.Command(editor, tmpFile.Name()) | ||
cmd.Stdin = os.Stdin | ||
cmd.Stdout = os.Stdout | ||
cmd.Stderr = os.Stderr | ||
if err := cmd.Run(); err != nil { | ||
return fmt.Errorf("failed to start editor (%s): %w", cmd.String(), err) | ||
} | ||
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newCfgBytes, err := os.ReadFile(tmpFile.Name()) | ||
if err != nil { | ||
return err | ||
} | ||
newCfg := string(newCfgBytes) | ||
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if newCfg == oldCfg { | ||
return fmt.Errorf("configuration was not changed, aborting") | ||
} | ||
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if err := h.Exec(h.Configurer.K0sCmdf("kubectl apply -n kube-system -f -"), exec.Stdin(newCfg), exec.Sudo(h)); err != nil { | ||
return err | ||
} | ||
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return nil | ||
}, | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,66 @@ | ||
package cmd | ||
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import ( | ||
"fmt" | ||
"os" | ||
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"github.com/k0sproject/k0sctl/analytics" | ||
"github.com/k0sproject/k0sctl/pkg/apis/k0sctl.k0sproject.io/v1beta1" | ||
"github.com/k0sproject/rig/exec" | ||
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"github.com/mattn/go-isatty" | ||
"github.com/urfave/cli/v2" | ||
) | ||
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var configStatusCommand = &cli.Command{ | ||
Name: "status", | ||
Usage: "Show k0s dynamic config reconciliation events", | ||
Flags: []cli.Flag{ | ||
configFlag, | ||
debugFlag, | ||
traceFlag, | ||
redactFlag, | ||
analyticsFlag, | ||
upgradeCheckFlag, | ||
&cli.StringFlag{ | ||
Name: "output", | ||
Usage: "kubectl output formatting", | ||
Aliases: []string{"o"}, | ||
}, | ||
}, | ||
Before: actions(initLogging, startCheckUpgrade, initConfig, initAnalytics), | ||
After: actions(reportCheckUpgrade, closeAnalytics), | ||
Action: func(ctx *cli.Context) error { | ||
if !isatty.IsTerminal(os.Stdout.Fd()) { | ||
return fmt.Errorf("output is not a terminal") | ||
} | ||
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if err := analytics.Client.Publish("config-status-start", map[string]interface{}{}); err != nil { | ||
return err | ||
} | ||
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c := ctx.Context.Value(ctxConfigKey{}).(*v1beta1.Cluster) | ||
h := c.Spec.K0sLeader() | ||
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if err := h.Connect(); err != nil { | ||
return fmt.Errorf("failed to connect: %w", err) | ||
} | ||
defer h.Disconnect() | ||
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if err := h.ResolveConfigurer(); err != nil { | ||
return err | ||
} | ||
format := ctx.String("output") | ||
if format != "" { | ||
format = "-o " + format | ||
} | ||
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output, err := h.ExecOutput(h.Configurer.K0sCmdf("kubectl -n kube-system get event --field-selector involvedObject.name=k0s %s", format), exec.Sudo(h)) | ||
if err != nil { | ||
return fmt.Errorf("%s: %w", h, err) | ||
} | ||
fmt.Println(output) | ||
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return nil | ||
}, | ||
} |
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