forked from flanksource/karina
/
flux.go
142 lines (122 loc) · 3.49 KB
/
flux.go
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package flux
import (
"encoding/base64"
"fmt"
"sort"
"k8s.io/apimachinery/pkg/runtime"
"github.com/moshloop/platform-cli/pkg/k8s"
"github.com/moshloop/platform-cli/pkg/platform"
"github.com/moshloop/platform-cli/pkg/types"
)
func Install(p *platform.Platform) error {
p.Infof("Deploying %d gitops controllers", len(p.GitOps))
for _, gitops := range p.GitOps {
if gitops.Namespace != "" {
if err := p.CreateOrUpdateNamespace(gitops.Namespace, nil, nil); err != nil {
return fmt.Errorf("install: failed to create namespace: %s: %v", gitops.Namespace, err)
}
}
if err := p.Apply(gitops.Namespace, NewFluxDeployment(&gitops)...); err != nil {
return fmt.Errorf("install: failed to apply deployment: %v", err)
}
}
return nil
}
// Create flux command arguments from CR
func defaults(cr *types.GitOps) {
if cr.Namespace == "" {
cr.Namespace = "kube-system"
}
if cr.Name == "" {
cr.Name = cr.Namespace
}
if cr.GitBranch == "" {
cr.GitBranch = "master"
}
if cr.GitPath == "" {
cr.GitPath = "./"
}
if cr.GitPollInterval == "" {
cr.GitPollInterval = "60s"
}
if cr.SyncInterval == "" {
cr.SyncInterval = "5m00s"
}
if cr.FluxVersion == "" {
cr.FluxVersion = "1.19.0"
}
if cr.DisableScanning == nil {
t := true
cr.DisableScanning = &t
}
}
func getArgs(cr *types.GitOps, argMap map[string]string) []string {
var args []string
for key, value := range cr.Args {
argMap[key] = value
}
for key, value := range argMap {
args = append(args, fmt.Sprintf("--%s=%s", key, value))
}
sort.Strings(args)
return args
}
// NewFluxDeployment creates a new flux pod
func NewFluxDeployment(cr *types.GitOps) []runtime.Object {
defaults(cr)
memcacheName := fmt.Sprintf("flux-memcache-%s", cr.Name)
secretName := fmt.Sprintf("flux-git-deploy-%s", cr.Name)
sshConfig := fmt.Sprintf("flux-ssh-%s", cr.Name)
saName := fmt.Sprintf("flux-" + cr.Name)
argMap := map[string]string{
"git-url": cr.GitURL,
"git-branch": cr.GitBranch,
"git-path": cr.GitPath,
"git-poll-interval": cr.GitPollInterval,
"sync-interval": cr.SyncInterval,
"k8s-secret-name": secretName,
"ssh-keygen-dir": "/etc/fluxd/ssh",
"memcached-hostname": memcacheName,
"manifest-generation": "true",
"registry-exclude-image": "*",
// use ClusterIP rather than DNS SRV lookup
"memcached-service": "",
}
spec := k8s.Builder{
Namespace: cr.Namespace,
}
if *cr.DisableScanning {
argMap["git-readonly"] = "true"
argMap["registry-disable-scanning"] = "true"
} else {
// memecache is only deployed for scanning
spec.Deployment(memcacheName, "docker.io/memcached:1.4.36-alpine").
Args("-m 512", "-p 11211", "-I 5m").
Expose(11211).
Build()
}
spec.Deployment("flux-"+cr.Name, fmt.Sprintf("%s:%s", "docker.io/fluxcd/flux", cr.FluxVersion)).
Labels(map[string]string{
"app": "flux",
}).
Args(getArgs(cr, argMap)...).
ServiceAccount(saName).
MountSecret(secretName, "/etc/fluxd/ssh", int32(0400)).
MountConfigMap(sshConfig, "/root/.ssh").
Expose(3030).
Build()
if cr.Namespace == "kube-system" {
spec.ServiceAccount(saName).AddClusterRole("cluster-admin")
} else {
spec.ServiceAccount(saName).AddRole("namespace-admin").AddRole("namespace-creator")
}
data, _ := base64.StdEncoding.DecodeString(cr.GitKey)
spec.Secret(secretName, map[string][]byte{
"identity": data,
})
spec.ConfigMap(sshConfig, map[string]string{
"known_hosts": cr.KnownHosts,
"config": cr.SSHConfig,
})
return spec.Objects
}