You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
helm/pkg/client/install.go

98 lines
1.9 KiB

package client
import (
"bytes"
"fmt"
"text/template"
"github.com/Masterminds/sprig"
"github.com/kubernetes/helm/pkg/kube"
)
// Installer installs tiller into Kubernetes
//
// See InstallYAML.
type Installer struct {
// Metadata holds any global metadata attributes for the resources
Metadata map[string]interface{}
// Tiller specific metadata
Tiller map[string]interface{}
}
// NewInstaller creates a new Installer
func NewInstaller() *Installer {
return &Installer{
Metadata: map[string]interface{}{},
Tiller: map[string]interface{}{},
}
}
// Install uses kubernetes client to install tiller
//
// Returns the string output received from the operation, and an error if the
// command failed.
func (i *Installer) Install(verbose bool) error {
var b bytes.Buffer
err := template.Must(template.New("manifest").Funcs(sprig.TxtFuncMap()).
Parse(InstallYAML)).
Execute(&b, i)
if err != nil {
return err
}
if verbose {
fmt.Println(b.String())
}
return kube.New(nil).Create("helm", &b)
}
// InstallYAML is the installation YAML for DM.
const InstallYAML = `
---{{$namespace := default "helm" .Tiller.Namespace}}
apiVersion: v1
kind: Namespace
metadata:
labels:
app: helm
name: helm-namespace
name: {{$namespace}}
---
apiVersion: v1
kind: ReplicationController
metadata:
labels:
app: helm
name: tiller
name: tiller-rc
namespace: {{$namespace}}
spec:
replicas: 1
selector:
app: helm
name: tiller
template:
metadata:
labels:
app: helm
name: tiller
spec:
containers:
- env:
- name: DEFAULT_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
image: {{default "gcr.io/kubernetes-helm/tiller:canary" .Tiller.Image}}
name: tiller
ports:
- containerPort: 44134
name: tiller
imagePullPolicy: Always
---
`