/
subcommands.go
912 lines (784 loc) · 25.4 KB
/
subcommands.go
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package scheduler_k3s
import (
"context"
"crypto/rand"
"encoding/json"
"fmt"
"net/url"
"os"
"os/signal"
"sort"
"strings"
"syscall"
"github.com/dokku/dokku/plugins/common"
resty "github.com/go-resty/resty/v2"
"github.com/ryanuber/columnize"
)
// CommandAnnotationsSet set or clear a scheduler-k3s annotation for an app
func CommandAnnotationsSet(appName string, processType string, resourceType string, key string, value string) error {
if resourceType == "" {
return fmt.Errorf("Missing resource-type")
}
if processType == "" {
processType = GlobalProcessType
}
property := fmt.Sprintf("%s.%s", processType, resourceType)
annotationsList, err := common.PropertyListGet("scheduler-k3s", appName, property)
if err != nil {
return fmt.Errorf("Unable to get property list: %w", err)
}
annotations := []string{}
for _, annotation := range annotationsList {
parts := strings.SplitN(annotation, ": ", 2)
if len(parts) != 2 {
return fmt.Errorf("Invalid annotation: %s", annotation)
}
if key == parts[0] {
continue
}
annotations = append(annotations, annotation)
}
if value != "" {
annotations = append(annotations, fmt.Sprintf("%s: %s", key, value))
}
sort.Strings(annotations)
if err := common.PropertyListWrite("scheduler-k3s", appName, property, annotations); err != nil {
return fmt.Errorf("Unable to write property list: %w", err)
}
return nil
}
// CommandAutoscalingAuthSet set or clear a scheduler-k3s autoscaling keda trigger authentication object for an app
func CommandAutoscalingAuthSet(appName string, trigger string, metadata map[string]string, global bool) error {
if global {
appName = "--global"
}
if appName != "--global" {
if err := common.VerifyAppName(appName); err != nil {
return err
}
}
if len(trigger) == 0 {
return fmt.Errorf("Missing trigger type argument")
}
if len(metadata) == 0 {
properties, err := common.PropertyGetAllByPrefix("scheduler-k3s", appName, fmt.Sprintf("%s%s.", TriggerAuthPropertyPrefix, trigger))
if err != nil {
return fmt.Errorf("Unable to get property list: %w", err)
}
for key := range properties {
if err := common.PropertyDelete("scheduler-k3s", appName, key); err != nil {
return fmt.Errorf("Unable to delete property: %w", err)
}
}
if appName == "--global" {
helmAgent, err := NewHelmAgent("keda", DeployLogPrinter)
if err != nil {
return fmt.Errorf("Unable to create helm agent: %w", err)
}
releaseName := fmt.Sprintf("keda-cluster-trigger-authentications-%s", trigger)
if err := helmAgent.UninstallChart(releaseName); err != nil {
return fmt.Errorf("Unable to uninstall chart: %w", err)
}
}
return nil
}
for key, value := range metadata {
if err := common.PropertyWrite("scheduler-k3s", appName, fmt.Sprintf("%s%s.%s", TriggerAuthPropertyPrefix, trigger, key), value); err != nil {
return fmt.Errorf("Unable to set property: %w", err)
}
common.LogInfo1("Trigger authentication settings saved")
common.LogVerbose("Resources will be created or updated on next deploy")
}
if appName == "--global" {
err := applyKedaClusterTriggerAuthentications(context.Background(), trigger, metadata)
if err != nil {
return fmt.Errorf("Unable to install chart: %w", err)
}
}
return nil
}
// CommandAutoscalingAuthReport displays a scheduler-k3s autoscaling keda trigger authentication report for one or more apps
func CommandAutoscalingAuthReport(appName string, format string, global bool, includeMetadata bool) error {
if len(appName) == 0 && !global {
return fmt.Errorf("Missing required app name or --global flag")
}
if len(appName) > 0 && global {
return fmt.Errorf("Cannot specify both app name and --global flag")
}
if !global {
if err := common.VerifyAppName(appName); err != nil {
return err
}
}
if len(appName) > 0 {
return ReportAutoscalingAuthSingleApp(appName, format, includeMetadata)
}
return ReportAutoscalingAuthSingleApp("--global", format, includeMetadata)
}
// CommandInitialize initializes a k3s cluster on the local server
func CommandInitialize(ingressClass string, serverIP string, taintScheduling bool) error {
if ingressClass != "nginx" && ingressClass != "traefik" {
return fmt.Errorf("Invalid ingress-class: %s", ingressClass)
}
if err := isK3sInstalled(); err == nil {
return fmt.Errorf("k3s already installed, cannot re-initialize k3s")
}
ctx, cancel := context.WithCancel(context.Background())
signals := make(chan os.Signal, 1)
signal.Notify(signals, os.Interrupt, syscall.SIGHUP,
syscall.SIGINT,
syscall.SIGQUIT,
syscall.SIGTERM)
go func() {
<-signals
cancel()
}()
if serverIP == "" {
var err error
serverIP, err = getServerIP()
if err != nil {
return fmt.Errorf("Unable to get server ip address: %w", err)
}
common.LogVerboseQuiet(fmt.Sprintf("Using server ip address: %s", serverIP))
}
common.LogInfo1Quiet("Initializing k3s")
common.LogInfo2Quiet("Updating apt")
aptUpdateCmd, err := common.CallExecCommand(common.ExecCommandInput{
Command: "apt-get",
Args: []string{
"update",
},
StreamStdio: true,
})
if err != nil {
return fmt.Errorf("Unable to call apt-get update command: %w", err)
}
if aptUpdateCmd.ExitCode != 0 {
return fmt.Errorf("Invalid exit code from apt-get update command: %d", aptUpdateCmd.ExitCode)
}
common.LogInfo2Quiet("Installing k3s dependencies")
aptInstallCmd, err := common.CallExecCommand(common.ExecCommandInput{
Command: "apt-get",
Args: []string{
"-y",
"install",
"ca-certificates",
"curl",
"open-iscsi",
"nfs-common",
"wireguard",
},
StreamStdio: true,
})
if err != nil {
return fmt.Errorf("Unable to call apt-get install command: %w", err)
}
if aptInstallCmd.ExitCode != 0 {
return fmt.Errorf("Invalid exit code from apt-get install command: %d", aptInstallCmd.ExitCode)
}
common.LogInfo2Quiet("Downloading k3s installer")
client := resty.New()
resp, err := client.R().
SetContext(ctx).
Get("https://get.k3s.io")
if err != nil {
return fmt.Errorf("Unable to download k3s installer: %w", err)
}
if resp == nil {
return fmt.Errorf("Missing response from k3s installer download: %w", err)
}
if resp.StatusCode() != 200 {
return fmt.Errorf("Invalid status code for k3s installer script: %d", resp.StatusCode())
}
f, err := os.CreateTemp("", "sample")
if err != nil {
return fmt.Errorf("Unable to create temporary file for k3s installer: %w", err)
}
defer os.Remove(f.Name())
if err := f.Close(); err != nil {
return fmt.Errorf("Unable to close k3s installer file: %w", err)
}
err = common.WriteStringToFile(common.WriteStringToFileInput{
Content: resp.String(),
Filename: f.Name(),
Mode: os.FileMode(0755),
})
if err != nil {
return fmt.Errorf("Unable to write k3s installer to file: %w", err)
}
fi, err := os.Stat(f.Name())
if err != nil {
return fmt.Errorf("Unable to get k3s installer file size: %w", err)
}
if fi.Size() == 0 {
return fmt.Errorf("Invalid k3s installer filesize")
}
token := getGlobalGlobalToken()
if len(token) == 0 {
n := 5
b := make([]byte, n)
if _, err := rand.Read(b); err != nil {
return fmt.Errorf("Unable to generate random node name: %w", err)
}
token = strings.ToLower(fmt.Sprintf("%X", b))
if err := CommandSet("--global", "token", token); err != nil {
return fmt.Errorf("Unable to set k3s token: %w", err)
}
}
nodeName := serverIP
n := 5
b := make([]byte, n)
if _, err := rand.Read(b); err != nil {
return fmt.Errorf("Unable to generate random node name: %w", err)
}
nodeName = strings.ReplaceAll(strings.ToLower(fmt.Sprintf("ip-%s-%s", nodeName, fmt.Sprintf("%X", b))), ".", "-")
args := []string{
// initialize the cluster
"--cluster-init",
// disable local-storage
"--disable", "local-storage",
// disable traefik so it can be installed separately
"--disable", "traefik",
// expose etcd metrics
"--etcd-expose-metrics",
// use wireguard for flannel
"--flannel-backend=wireguard-native",
// bind controller-manager to all interfaces
"--kube-controller-manager-arg", "bind-address=0.0.0.0",
// bind proxy metrics to all interfaces
"--kube-proxy-arg", "metrics-bind-address=0.0.0.0",
// bind scheduler to all interfaces
"--kube-scheduler-arg", "bind-address=0.0.0.0",
// gc terminated pods
"--kube-controller-manager-arg", "terminated-pod-gc-threshold=10",
// specify the node name
"--node-name", nodeName,
// allow access for the dokku user
"--write-kubeconfig-mode", "0644",
// specify a token
"--token", token,
}
if taintScheduling {
args = append(args, "--node-taint", "CriticalAddonsOnly=true:NoSchedule")
}
common.CommandPropertySet("scheduler-k3s", "--global", "ingress-class", ingressClass, DefaultProperties, GlobalProperties)
if ingressClass == "nginx" {
args = append(args, "--disable", "traefik")
}
common.LogInfo2Quiet("Running k3s installer")
installerCmd, err := common.CallExecCommand(common.ExecCommandInput{
Command: f.Name(),
Args: args,
StreamStdio: true,
})
if err != nil {
return fmt.Errorf("Unable to call k3s installer command: %w", err)
}
if installerCmd.ExitCode != 0 {
return fmt.Errorf("Invalid exit code from k3s installer command: %d", installerCmd.ExitCode)
}
clientset, err := NewKubernetesClient()
if err != nil {
return fmt.Errorf("Unable to create kubernetes client: %w", err)
}
common.LogInfo2Quiet("Waiting for node to exist")
nodes, err := waitForNodeToExist(ctx, WaitForNodeToExistInput{
Clientset: clientset,
NodeName: nodeName,
RetryCount: 20,
})
if err != nil {
return fmt.Errorf("Error waiting for pod to exist: %w", err)
}
if len(nodes) == 0 {
return fmt.Errorf("Unable to find node after initializing cluster, node will not be annotated/labeled appropriately access registry secrets")
}
for _, manifest := range KubernetesManifests {
common.LogInfo2Quiet(fmt.Sprintf("Installing %s@%s", manifest.Name, manifest.Version))
err = clientset.ApplyKubernetesManifest(ctx, ApplyKubernetesManifestInput{
Manifest: manifest.Path,
})
if err != nil {
return fmt.Errorf("Unable to apply kubernetes manifest: %w", err)
}
}
for key, value := range ServerLabels {
common.LogInfo2Quiet(fmt.Sprintf("Labeling node %s=%s", key, value))
if err != nil {
return fmt.Errorf("Unable to create kubernetes client: %w", err)
}
err = clientset.LabelNode(ctx, LabelNodeInput{
Name: nodeName,
Key: key,
Value: value,
})
if err != nil {
return fmt.Errorf("Unable to patch node: %w", err)
}
}
common.LogInfo2Quiet("Installing helm charts")
err = installHelmCharts(ctx, clientset, func(chart HelmChart) bool {
if chart.ChartPath == "traefik" && ingressClass == "nginx" {
return false
}
if chart.ChartPath == "ingress-nginx" && ingressClass == "traefik" {
return false
}
return true
})
if err != nil {
return fmt.Errorf("Unable to install helm charts: %w", err)
}
common.LogInfo2Quiet("Installing helper commands")
err = installHelperCommands(ctx)
if err != nil {
return fmt.Errorf("Unable to install helper commands: %w", err)
}
common.LogVerboseQuiet("Done")
return nil
}
// CommandClusterAdd adds a server to the k3s cluster
func CommandClusterAdd(role string, remoteHost string, serverIP string, allowUknownHosts bool, taintScheduling bool) error {
if err := isK3sInstalled(); err != nil {
return fmt.Errorf("k3s not installed, cannot add node to cluster: %w", err)
}
clientset, err := NewKubernetesClient()
if err != nil {
return fmt.Errorf("Unable to create kubernetes client: %w", err)
}
if err := clientset.Ping(); err != nil {
return fmt.Errorf("kubernetes api not available, cannot add node to cluster: %w", err)
}
if role != "server" && role != "worker" {
return fmt.Errorf("Invalid server-type: %s", role)
}
token := getGlobalGlobalToken()
if len(token) == 0 {
return fmt.Errorf("Missing k3s token")
}
if taintScheduling && role == "worker" {
return fmt.Errorf("Taint scheduling can only be used on the server role")
}
if serverIP == "" {
var err error
serverIP, err = getServerIP()
if err != nil {
return fmt.Errorf("Unable to get server ip address: %w", err)
}
common.LogVerboseQuiet(fmt.Sprintf("Using server ip address: %s", serverIP))
}
ctx, cancel := context.WithCancel(context.Background())
signals := make(chan os.Signal, 1)
signal.Notify(signals, os.Interrupt, syscall.SIGHUP,
syscall.SIGINT,
syscall.SIGQUIT,
syscall.SIGTERM)
go func() {
<-signals
cancel()
}()
// todo: check if k3s is installed on the remote host
k3sVersionCmd, err := common.CallExecCommand(common.ExecCommandInput{
Command: "k3s",
Args: []string{"--version"},
})
if err != nil {
return fmt.Errorf("Unable to call k3s version command: %w", err)
}
if k3sVersionCmd.ExitCode != 0 {
return fmt.Errorf("Invalid exit code from k3s --version command: %d", k3sVersionCmd.ExitCode)
}
k3sVersion := ""
k3sVersionLines := strings.Split(string(k3sVersionCmd.Stdout), "\n")
if len(k3sVersionLines) > 0 {
k3sVersionParts := strings.Split(k3sVersionLines[0], " ")
if len(k3sVersionParts) != 4 {
return fmt.Errorf("Unable to get k3s version from k3s --version: %s", k3sVersionCmd.Stdout)
}
k3sVersion = k3sVersionParts[2]
}
common.LogDebug(fmt.Sprintf("k3s version: %s", k3sVersion))
common.LogInfo1(fmt.Sprintf("Joining %s to k3s cluster as %s", remoteHost, role))
common.LogInfo2Quiet("Updating apt")
aptUpdateCmd, err := common.CallSshCommand(common.SshCommandInput{
Command: "apt-get",
Args: []string{
"update",
},
AllowUknownHosts: allowUknownHosts,
RemoteHost: remoteHost,
StreamStdio: true,
Sudo: true,
})
if err != nil {
return fmt.Errorf("Unable to call apt-get update command over ssh: %w", err)
}
if aptUpdateCmd.ExitCode != 0 {
return fmt.Errorf("Invalid exit code from apt-get update command over ssh: %d", aptUpdateCmd.ExitCode)
}
common.LogInfo2Quiet("Installing k3s dependencies")
aptInstallCmd, err := common.CallSshCommand(common.SshCommandInput{
Command: "apt-get",
Args: []string{
"-y",
"install",
"ca-certificates",
"curl",
"open-iscsi",
"nfs-common",
"wireguard",
},
AllowUknownHosts: allowUknownHosts,
RemoteHost: remoteHost,
StreamStdio: true,
Sudo: true,
})
if err != nil {
return fmt.Errorf("Unable to call apt-get install command over ssh: %w", err)
}
if aptInstallCmd.ExitCode != 0 {
return fmt.Errorf("Invalid exit code from apt-get install command over ssh: %d", aptInstallCmd.ExitCode)
}
common.LogInfo2Quiet("Downloading k3s installer")
curlTask, err := common.CallSshCommand(common.SshCommandInput{
Command: "curl",
Args: []string{
"-o /tmp/k3s-installer.sh",
"https://get.k3s.io",
},
AllowUknownHosts: allowUknownHosts,
RemoteHost: remoteHost,
StreamStdio: true,
})
if err != nil {
return fmt.Errorf("Unable to call curl command over ssh: %w", err)
}
if curlTask.ExitCode != 0 {
return fmt.Errorf("Invalid exit code from curl command over ssh: %d", curlTask.ExitCode)
}
common.LogInfo2Quiet("Setting k3s installer permissions")
chmodCmd, err := common.CallSshCommand(common.SshCommandInput{
Command: "chmod",
Args: []string{
"0755",
"/tmp/k3s-installer.sh",
},
AllowUknownHosts: allowUknownHosts,
RemoteHost: remoteHost,
StreamStdio: true,
})
if err != nil {
return fmt.Errorf("Unable to call chmod command over ssh: %w", err)
}
if chmodCmd.ExitCode != 0 {
return fmt.Errorf("Invalid exit code from chmod command over ssh: %d", chmodCmd.ExitCode)
}
u, err := url.Parse(remoteHost)
if err != nil {
return fmt.Errorf("failed to parse remote host: %w", err)
}
nodeName := u.Hostname()
n := 5
b := make([]byte, n)
if _, err := rand.Read(b); err != nil {
return fmt.Errorf("Unable to generate random node name: %w", err)
}
nodeName = strings.ReplaceAll(strings.ToLower(fmt.Sprintf("ip-%s-%s", nodeName, fmt.Sprintf("%X", b))), ".", "-")
args := []string{
// disable local-storage
"--disable", "local-storage",
// use wireguard for flannel
"--flannel-backend=wireguard-native",
// specify the node name
"--node-name", nodeName,
// server to connect to as the main
"--server",
fmt.Sprintf("https://%s:6443", serverIP),
// specify a token
"--token",
token,
}
if role == "server" {
args = append([]string{"server"}, args...)
// expose etcd metrics
args = append(args, "--etcd-expose-metrics")
// bind controller-manager to all interfaces
args = append(args, "--kube-controller-manager-arg", "bind-address=0.0.0.0")
// bind proxy metrics to all interfaces
args = append(args, "--kube-proxy-arg", "metrics-bind-address=0.0.0.0")
// bind scheduler to all interfaces
args = append(args, "--kube-scheduler-arg", "bind-address=0.0.0.0")
// gc terminated pods
args = append(args, "--kube-controller-manager-arg", "terminated-pod-gc-threshold=10")
// allow access for the dokku user
args = append(args, "--write-kubeconfig-mode", "0644")
} else {
// disable etcd on workers
args = append(args, "--disable-etcd")
// disable apiserver on workers
args = append(args, "--disable-apiserver")
// disable controller-manager on workers
args = append(args, "--disable-controller-manager")
// disable scheduler on workers
args = append(args, "--disable-scheduler")
// bind proxy metrics to all interfaces
args = append(args, "--kube-proxy-arg", "metrics-bind-address=0.0.0.0")
}
if taintScheduling {
args = append(args, "--node-taint", "CriticalAddonsOnly=true:NoSchedule")
}
common.LogInfo2Quiet(fmt.Sprintf("Adding %s k3s cluster", nodeName))
joinCmd, err := common.CallSshCommand(common.SshCommandInput{
Command: "/tmp/k3s-installer.sh",
Args: args,
AllowUknownHosts: allowUknownHosts,
RemoteHost: remoteHost,
StreamStdio: true,
Sudo: true,
})
if err != nil {
return fmt.Errorf("Unable to call k3s installer command over ssh: %w", err)
}
if joinCmd.ExitCode != 0 {
return fmt.Errorf("Invalid exit code from k3s installer command over ssh: %d", joinCmd.ExitCode)
}
common.LogInfo2Quiet("Waiting for node to exist")
nodes, err := waitForNodeToExist(ctx, WaitForNodeToExistInput{
Clientset: clientset,
NodeName: nodeName,
RetryCount: 20,
})
if err != nil {
return fmt.Errorf("Error waiting for pod to exist: %w", err)
}
if len(nodes) == 0 {
return fmt.Errorf("Unable to find node after joining cluster, node will not be annotated/labeled appropriately access registry secrets")
}
labels := ServerLabels
if role == "worker" {
labels = WorkerLabels
}
for key, value := range labels {
common.LogInfo2Quiet(fmt.Sprintf("Labeling node %s=%s", key, value))
if err != nil {
return fmt.Errorf("Unable to create kubernetes client: %w", err)
}
err = clientset.LabelNode(ctx, LabelNodeInput{
Name: nodeName,
Key: key,
Value: value,
})
if err != nil {
return fmt.Errorf("Unable to patch node: %w", err)
}
}
common.LogInfo2Quiet("Annotating node with connection information")
err = clientset.AnnotateNode(ctx, AnnotateNodeInput{
Name: nodes[0].Name,
Key: "dokku.com/remote-host",
Value: remoteHost,
})
if err != nil {
return fmt.Errorf("Unable to patch node: %w", err)
}
common.LogVerboseQuiet("Done")
return nil
}
// CommandClusterList lists the nodes in the k3s cluster
func CommandClusterList(format string) error {
if format != "stdout" && format != "json" {
return fmt.Errorf("Invalid format: %s", format)
}
ctx, cancel := context.WithCancel(context.Background())
signals := make(chan os.Signal, 1)
signal.Notify(signals, os.Interrupt, syscall.SIGHUP,
syscall.SIGINT,
syscall.SIGQUIT,
syscall.SIGTERM)
go func() {
<-signals
cancel()
}()
clientset, err := NewKubernetesClient()
if err != nil {
return fmt.Errorf("Unable to create kubernetes client: %w", err)
}
if err := clientset.Ping(); err != nil {
return fmt.Errorf("kubernetes api not available, cannot list cluster nodes: %w", err)
}
nodes, err := clientset.ListNodes(ctx, ListNodesInput{})
if err != nil {
return fmt.Errorf("Unable to list nodes: %w", err)
}
output := []Node{}
for _, node := range nodes {
output = append(output, kubernetesNodeToNode(node))
}
if format == "stdout" {
lines := []string{"name|ready|roles|version"}
for _, node := range output {
lines = append(lines, node.String())
}
columnized := columnize.SimpleFormat(lines)
fmt.Println(columnized)
return nil
}
b, err := json.Marshal(output)
if err != nil {
return fmt.Errorf("Unable to marshal json: %w", err)
}
fmt.Println(string(b))
return nil
}
// CommandClusterRemove removes a node from the k3s cluster
func CommandClusterRemove(nodeName string) error {
if err := isK3sInstalled(); err != nil {
return fmt.Errorf("k3s not installed, cannot remove node from cluster: %w", err)
}
ctx, cancel := context.WithCancel(context.Background())
signals := make(chan os.Signal, 1)
signal.Notify(signals, os.Interrupt, syscall.SIGHUP,
syscall.SIGINT,
syscall.SIGQUIT,
syscall.SIGTERM)
go func() {
<-signals
cancel()
}()
common.LogInfo1Quiet(fmt.Sprintf("Removing %s from k3s cluster", nodeName))
clientset, err := NewKubernetesClient()
if err != nil {
return fmt.Errorf("Unable to create kubernetes client: %w", err)
}
if err := clientset.Ping(); err != nil {
return fmt.Errorf("kubernetes api not available: %w", err)
}
common.LogVerboseQuiet("Getting node remote connection information")
node, err := clientset.GetNode(ctx, GetNodeInput{
Name: nodeName,
})
if err != nil {
return fmt.Errorf("Unable to get node: %w", err)
}
common.LogVerboseQuiet("Checking if node is a remote node managed by Dokku")
if node.RemoteHost == "" {
return fmt.Errorf("Node %s is not a remote node managed by Dokku", nodeName)
}
common.LogVerboseQuiet("Uninstalling k3s on remote host")
removeCmd, err := common.CallSshCommand(common.SshCommandInput{
Command: "/usr/local/bin/k3s-uninstall.sh",
Args: []string{},
AllowUknownHosts: true,
RemoteHost: node.RemoteHost,
StreamStdio: true,
Sudo: true,
})
if err != nil {
return fmt.Errorf("Unable to call k3s uninstall command over ssh: %w", err)
}
if removeCmd.ExitCode != 0 {
return fmt.Errorf("Invalid exit code from k3s uninstall command over ssh: %d", removeCmd.ExitCode)
}
common.LogVerboseQuiet("Deleting node from k3s cluster")
err = clientset.DeleteNode(ctx, DeleteNodeInput{
Name: nodeName,
})
if err != nil {
return fmt.Errorf("Unable to delete node: %w", err)
}
common.LogVerboseQuiet("Done")
return nil
}
// CommandLabelsSet set or clear a scheduler-k3s label for an app
func CommandLabelsSet(appName string, processType string, resourceType string, key string, value string) error {
if resourceType == "" {
return fmt.Errorf("Missing resource-type")
}
if processType == "" {
processType = GlobalProcessType
}
property := fmt.Sprintf("labels.%s.%s", processType, resourceType)
labelsList, err := common.PropertyListGet("scheduler-k3s", appName, property)
if err != nil {
return fmt.Errorf("Unable to get property list: %w", err)
}
labels := []string{}
for _, annotation := range labelsList {
parts := strings.SplitN(annotation, ": ", 2)
if len(parts) != 2 {
return fmt.Errorf("Invalid annotation: %s", annotation)
}
if key == parts[0] {
continue
}
labels = append(labels, annotation)
}
if value != "" {
labels = append(labels, fmt.Sprintf("%s: %s", key, value))
}
sort.Strings(labels)
if err := common.PropertyListWrite("scheduler-k3s", appName, property, labels); err != nil {
return fmt.Errorf("Unable to write property list: %w", err)
}
return nil
}
// CommandReport displays a scheduler-k3s report for one or more apps
func CommandReport(appName string, format string, infoFlag string) error {
if len(appName) == 0 {
apps, err := common.DokkuApps()
if err != nil {
return err
}
for _, appName := range apps {
if err := ReportSingleApp(appName, format, infoFlag); err != nil {
return err
}
}
return nil
}
return ReportSingleApp(appName, format, infoFlag)
}
// CommandSet set or clear a scheduler-k3s property for an app
func CommandSet(appName string, property string, value string) error {
common.CommandPropertySet("scheduler-k3s", appName, property, value, DefaultProperties, GlobalProperties)
letsencryptProperties := map[string]bool{
"letsencrypt-email-prod": true,
"letsencrypt-email-stag": true,
"letsencrypt-server": true,
}
if appName == "--global" && letsencryptProperties[property] {
return applyClusterIssuers(context.Background())
}
return nil
}
// CommandShowKubeconfig displays the kubeconfig file contents
func CommandShowKubeconfig() error {
kubeconfigPath := getKubeconfigPath()
if !common.FileExists(kubeconfigPath) {
return fmt.Errorf("Kubeconfig file does not exist: %s", kubeconfigPath)
}
b, err := os.ReadFile(kubeconfigPath)
if err != nil {
return fmt.Errorf("Unable to read kubeconfig file: %w", err)
}
fmt.Println(string(b))
return nil
}
func CommandUninstall() error {
if err := isK3sInstalled(); err != nil {
return fmt.Errorf("k3s not installed, cannot uninstall: %w", err)
}
common.LogInfo1("Uninstalling k3s")
uninstallerCmd, err := common.CallExecCommand(common.ExecCommandInput{
Command: "/usr/local/bin/k3s-uninstall.sh",
StreamStdio: true,
})
if err != nil {
return fmt.Errorf("Unable to call k3s uninstaller command: %w", err)
}
if uninstallerCmd.ExitCode != 0 {
return fmt.Errorf("Invalid exit code from k3s uninstaller command: %d", uninstallerCmd.ExitCode)
}
common.LogInfo2Quiet("Removing k3s dependencies")
return uninstallHelperCommands(context.Background())
}