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bootstrapSecrets.go
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bootstrapSecrets.go
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/*
Copyright (C) 2021-2023, Kubefirst
This program is licensed under MIT.
See the LICENSE file for more details.
*/
package providerConfigs
import (
"context"
"fmt"
"strings"
"github.com/rs/zerolog/log"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
)
func BootstrapMgmtCluster(
clientset *kubernetes.Clientset,
gitProvider string,
gitUser string,
destinationGitopsRepoURL string,
gitProtocol string,
cloudflareAPIToken string,
cloudAuth string,
dnsProvider string,
cloudProvider string,
httpsPassword string,
sshToken string,
) error {
// Create namespace
// Skip if it already exists
log.Info().Msg("creating namespaces")
err := K8sNamespaces(clientset)
if err != nil {
return err
}
log.Info().Msg("creating service accounts")
err = ServiceAccounts(clientset, cloudflareAPIToken)
if err != nil {
return err
}
// Create secrets
// swap secret data based on https flag
secretData := map[string][]byte{}
if gitProtocol == "https" {
// http basic auth
secretData = map[string][]byte{
"type": []byte("git"),
"name": []byte(fmt.Sprintf("%s-gitops", gitUser)),
"url": []byte(destinationGitopsRepoURL),
"username": []byte(gitUser),
"password": []byte([]byte(httpsPassword)),
}
} else {
// ssh
secretData = map[string][]byte{
"type": []byte("git"),
"name": []byte(fmt.Sprintf("%s-gitops", gitUser)),
"url": []byte(destinationGitopsRepoURL),
"sshPrivateKey": []byte(sshToken),
}
}
createSecrets := []*v1.Secret{
// argocd
{
ObjectMeta: metav1.ObjectMeta{
Name: "repo-credentials-template",
Namespace: "argocd",
Annotations: map[string]string{"managed-by": "argocd.argoproj.io"},
Labels: map[string]string{"argocd.argoproj.io/secret-type": "repository"},
},
Data: secretData,
},
{
ObjectMeta: metav1.ObjectMeta{Name: fmt.Sprintf("%s-auth", dnsProvider), Namespace: "external-dns"},
Data: map[string][]byte{
fmt.Sprintf("%s-auth", dnsProvider): []byte(cloudAuth),
"cf-api-token": []byte(cloudflareAPIToken),
},
},
{
ObjectMeta: metav1.ObjectMeta{Name: fmt.Sprintf("%s-secret", cloudProvider), Namespace: "cert-manager"},
Data: map[string][]byte{
"api-key": []byte(cloudAuth),
},
},
{
ObjectMeta: metav1.ObjectMeta{Name: fmt.Sprintf("%s-auth", dnsProvider), Namespace: "cert-manager"},
Data: map[string][]byte{
fmt.Sprintf("%s-auth", dnsProvider): []byte(cloudAuth),
"cf-api-token": []byte(cloudflareAPIToken),
},
},
}
for _, secret := range createSecrets {
_, err := clientset.CoreV1().Secrets(secret.ObjectMeta.Namespace).Get(context.TODO(), secret.ObjectMeta.Name, metav1.GetOptions{})
if err == nil {
log.Info().Msgf("kubernetes secret %s/%s already created - skipping", secret.Namespace, secret.Name)
} else if strings.Contains(err.Error(), "not found") {
_, err = clientset.CoreV1().Secrets(secret.ObjectMeta.Namespace).Create(context.TODO(), secret, metav1.CreateOptions{})
if err != nil {
log.Error().Msgf("error creating kubernetes secret %s/%s: %s", secret.Namespace, secret.Name, err)
return err
}
log.Info().Msgf("created kubernetes secret: %s/%s", secret.Namespace, secret.Name)
}
}
// Data used for service account creation
var automountServiceAccountToken bool = true
// Create service accounts
createServiceAccounts := []*v1.ServiceAccount{
// atlantis
{
ObjectMeta: metav1.ObjectMeta{Name: "atlantis", Namespace: "atlantis"},
AutomountServiceAccountToken: &automountServiceAccountToken,
},
// external-secrets-operator
{
ObjectMeta: metav1.ObjectMeta{Name: "external-secrets", Namespace: "external-secrets-operator"},
},
}
for _, serviceAccount := range createServiceAccounts {
_, err := clientset.CoreV1().ServiceAccounts(serviceAccount.ObjectMeta.Namespace).Get(context.TODO(), serviceAccount.ObjectMeta.Name, metav1.GetOptions{})
if err == nil {
log.Info().Msgf("kubernetes service account %s/%s already created - skipping", serviceAccount.Namespace, serviceAccount.Name)
} else if strings.Contains(err.Error(), "not found") {
_, err = clientset.CoreV1().ServiceAccounts(serviceAccount.ObjectMeta.Namespace).Create(context.TODO(), serviceAccount, metav1.CreateOptions{})
if err != nil {
log.Error().Msgf("error creating kubernetes service account %s/%s: %s", serviceAccount.Namespace, serviceAccount.Name, err)
return err
}
log.Info().Msgf("created kubernetes service account: %s/%s", serviceAccount.Namespace, serviceAccount.Name)
}
}
return nil
}
func K8sNamespaces(clientset *kubernetes.Clientset) error {
// Create namespace
// Skip if it already exists
newNamespaces := []string{
"argocd",
"argo",
"atlantis",
"chartmuseum",
"cert-manager",
"kubefirst",
"external-dns",
"external-secrets-operator",
"vault",
}
for i, s := range newNamespaces {
namespace := &v1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: s}}
_, err := clientset.CoreV1().Namespaces().Get(context.TODO(), s, metav1.GetOptions{})
if err != nil {
_, err = clientset.CoreV1().Namespaces().Create(context.TODO(), namespace, metav1.CreateOptions{})
if err != nil {
log.Error().Err(err).Msg("")
return fmt.Errorf("error creating namespace %s: %s", s, err)
}
log.Debug().Msgf("%d, %s", i, s)
log.Info().Msgf("namespace created: %s", s)
} else {
log.Warn().Msgf("namespace %s already exists - skipping", s)
}
}
return nil
}
func ServiceAccounts(clientset *kubernetes.Clientset, cloudflareAPIToken string) error {
var automountServiceAccountToken bool = true
// Create service accounts
createServiceAccounts := []*v1.ServiceAccount{
// atlantis
{
ObjectMeta: metav1.ObjectMeta{Name: "atlantis", Namespace: "atlantis"},
AutomountServiceAccountToken: &automountServiceAccountToken,
},
// external-secrets-operator
{
ObjectMeta: metav1.ObjectMeta{Name: "external-secrets", Namespace: "external-secrets-operator"},
AutomountServiceAccountToken: &automountServiceAccountToken,
},
}
for _, serviceAccount := range createServiceAccounts {
_, err := clientset.CoreV1().ServiceAccounts(serviceAccount.ObjectMeta.Namespace).Get(context.TODO(), serviceAccount.ObjectMeta.Name, metav1.GetOptions{})
if err == nil {
log.Info().Msgf("kubernetes service account %s/%s already created - skipping", serviceAccount.Namespace, serviceAccount.Name)
} else if strings.Contains(err.Error(), "not found") {
_, err = clientset.CoreV1().ServiceAccounts(serviceAccount.ObjectMeta.Namespace).Create(context.TODO(), serviceAccount, metav1.CreateOptions{})
if err != nil {
log.Error().Msgf("error creating kubernetes service account %s/%s: %s", serviceAccount.Namespace, serviceAccount.Name, err)
return err
}
log.Info().Msgf("created kubernetes service account: %s/%s", serviceAccount.Namespace, serviceAccount.Name)
}
}
return nil
}