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flux.go
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flux.go
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package enable
import (
"context"
"os"
"github.com/kris-nova/logger"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
"github.com/weaveworks/eksctl/pkg/actions/flux"
api "github.com/weaveworks/eksctl/pkg/apis/eksctl.io/v1alpha5"
"github.com/weaveworks/eksctl/pkg/ctl/cmdutils"
"github.com/weaveworks/eksctl/pkg/eks"
"github.com/weaveworks/eksctl/pkg/utils/kubeconfig"
"github.com/weaveworks/eksctl/pkg/version"
)
func enableFlux2(cmd *cmdutils.Cmd) {
configureAndRun(cmd, flux2Install)
}
func configureAndRun(cmd *cmdutils.Cmd, runFunc func(cmd *cmdutils.Cmd) error) {
cmd.ClusterConfig = api.NewClusterConfig()
cmd.SetDescription(
"flux",
"Set up GitOps Toolkit - deploys FluxV2 and creates Git repo to store manifests",
"",
)
cmd.FlagSetGroup.InFlagSet("General", func(fs *pflag.FlagSet) {
cmdutils.AddConfigFileFlag(fs, &cmd.ClusterConfigFile)
})
cmd.CobraCommand.RunE = func(_ *cobra.Command, args []string) error {
cmd.NameArg = cmdutils.GetNameArg(args)
if cmd.NameArg != "" {
return cmdutils.ErrUnsupportedNameArg()
}
if err := cmdutils.NewGitOpsConfigLoader(cmd).Load(); err != nil {
return err
}
return runFunc(cmd)
}
}
func flux2Install(cmd *cmdutils.Cmd) error {
logger.Info("eksctl version %s", version.GetVersion())
logger.Info("will install Flux v2 components on cluster %s", cmd.ClusterConfig.Metadata.Name)
if kubeconfAndContextNotSet(cmd.ClusterConfig.GitOps.Flux.Flags) {
ctl, err := cmd.NewProviderForExistingCluster(context.TODO())
if err != nil {
return err
}
if ok, err := ctl.CanOperate(cmd.ClusterConfig); !ok {
return err
}
kubeCfgPath, err := os.CreateTemp("", cmd.ClusterConfig.Metadata.Name)
if err != nil {
return err
}
defer func() {
if err := os.Remove(kubeCfgPath.Name()); err != nil {
logger.Critical("failed to remove temporary kubeconfig", kubeCfgPath)
}
}()
logger.Debug("writing temporary kubeconfig to %s", kubeCfgPath.Name())
kubectlConfig := kubeconfig.NewForKubectl(cmd.ClusterConfig, eks.GetUsername(ctl.Status.IAMRoleARN), "", ctl.AWSProvider.Profile().Name)
if _, err := kubeconfig.Write(kubeCfgPath.Name(), *kubectlConfig, true); err != nil {
return err
}
cmd.ClusterConfig.GitOps.Flux.Flags["kubeconfig"] = kubeCfgPath.Name()
}
k8sClientSet, err := cmdutils.KubernetesClientAndConfigFrom(cmd)
if err != nil {
return err
}
installer, err := flux.New(k8sClientSet, cmd.ClusterConfig.GitOps)
if err != nil {
return err
}
return installer.Run()
}
func kubeconfAndContextNotSet(flags map[string]string) bool {
_, cfg := flags["kubeconfig"]
_, ctx := flags["context"]
return !cfg && !ctx
}