/
main.go
170 lines (151 loc) · 3.68 KB
/
main.go
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package main
import (
"bytes"
"fmt"
"io"
"kubepack.dev/lib-helm/pkg/repo"
"kubepack.dev/lib-helm/pkg/values"
"net/url"
"path"
"strings"
_ "gocloud.dev/blob/azureblob"
_ "gocloud.dev/blob/fileblob"
_ "gocloud.dev/blob/gcsblob"
_ "gocloud.dev/blob/s3blob"
"helm.sh/helm/v3/pkg/registry"
releasesapi "x-helm.dev/apimachinery/apis/releases/v1alpha1"
)
type FluxCDCommandPrinter struct {
Registry repo.IRegistry
ChartRef releasesapi.ChartRef
Version string
ReleaseName string
Namespace string
Values values.Options
UseValuesFile bool
W io.Writer
valuesFile []byte
}
const indent = " "
func (x *FluxCDCommandPrinter) Do() error {
chrt, err := x.Registry.GetChart(releasesapi.ChartSourceRef{
Name: x.ChartRef.Name,
Version: x.Version,
SourceRef: x.ChartRef.SourceRef,
})
if err != nil {
return err
}
repoURL := x.ChartRef.SourceRef.Name
switch x.ChartRef.SourceRef.Kind {
case releasesapi.SourceKindHelmRepository:
helmRepo, err := x.Registry.GetHelmRepository(releasesapi.ChartSourceRef{
Name: x.ChartRef.Name,
Version: x.Version,
SourceRef: x.ChartRef.SourceRef,
})
if err != nil {
return err
}
repoURL = helmRepo.Spec.URL
}
/*
$ helm repo add appscode https://charts.appscode.com/stable/
$ helm repo update
$ helm search repo appscode/voyager --version v12.0.0-rc.1
*/
var buf bytes.Buffer
if !registry.IsOCI(repoURL) {
/*
$ helm upgrade --install voyager-operator appscode/voyager --version v12.0.0-rc.1 \
--namespace kube-system \
--set cloudProvider=$provider
*/
_, err = fmt.Fprintf(&buf, "helm upgrade --install %s %s \\\n", x.ReleaseName, x.ChartRef.Name)
if err != nil {
return err
}
if x.Version != "" {
_, err = fmt.Fprintf(&buf, "%s--repo %s --version %s \\\n", indent, repoURL, x.Version)
if err != nil {
return err
}
} else {
_, err = fmt.Fprintf(&buf, "%s--repo %s \\\n", indent, repoURL)
if err != nil {
return err
}
}
} else {
u, err := url.Parse(repoURL)
if err != nil {
return err
}
u.Path = path.Join(u.Path, x.ChartRef.Name)
u.User = nil
repoURL = u.String()
if x.Version != "" {
_, err = fmt.Fprintf(&buf, "helm upgrade --install %s %s --version %s \\\n", x.ReleaseName, repoURL, x.Version)
if err != nil {
return err
}
} else {
_, err = fmt.Fprintf(&buf, "helm upgrade --install %s %s \\\n", x.ReleaseName, repoURL)
if err != nil {
return err
}
}
}
if x.Namespace != "" {
_, err = fmt.Fprintf(&buf, "%s--namespace %s --create-namespace \\\n", indent, x.Namespace)
if err != nil {
return err
}
}
_, err = fmt.Fprintf(&buf, "%s--wait --debug --burst-limit=1000 \\\n", indent)
if err != nil {
return err
}
modified, err := x.Values.MergeValues(chrt.Chart)
if err != nil {
return err
}
if x.UseValuesFile {
x.valuesFile, err = values.GetValuesDiffYAML(chrt.Values, modified)
if err != nil {
return err
}
_, err = fmt.Fprintf(&buf, "%s--values=values.yaml", indent)
if err != nil {
return err
}
} else {
setValues, err := values.GetChangedValues(chrt.Values, modified)
if err != nil {
return err
}
for _, v := range setValues {
// xref: https://github.com/kubepack/lib-helm/issues/72
if strings.ContainsRune(v, '\n') {
idx := strings.IndexRune(v, '=')
return fmt.Errorf(`found \n is values for %s`, v[:idx])
}
_, err = fmt.Fprintf(&buf, "%s--set %s \\\n", indent, v)
if err != nil {
return err
}
}
buf.Truncate(buf.Len() - 3)
}
_, err = buf.WriteRune('\n')
if err != nil {
return err
}
_, err = buf.WriteTo(x.W)
return err
}
func (x *FluxCDCommandPrinter) ValuesFile() []byte {
return x.valuesFile
}
func main() {
}