Merge pull request #101 from jeessy2/master

fix: Add a new parameter "create_namespace"

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine/helm:3.1.1
+FROM alpine/helm:3.2.4
 MAINTAINER Erin Call <erin@liffft.com>
 
 COPY build/drone-helm /bin/drone-helm

docs/parameter_reference.md

@@ -49,6 +49,7 @@ Installations are triggered when the `mode` setting is "upgrade." They can also
 | values_files           | list\<string\> |          |                        | Values to use as `--values` arguments to `helm upgrade`. |
 | reuse_values           | boolean        |          |                        | Reuse the values from a previous release. |
 | skip_tls_verify        | boolean        |          |                        | Connect to the Kubernetes cluster without checking for a valid TLS certificate. Not recommended in production. This is ignored if `skip_kubeconfig` is `true`. |
+| create_namespace       | boolean        |          |                        | Pass --create-namespace to `helm upgrade`. |
 
 ## Uninstallation
 

internal/env/config.go

@@ -33,6 +33,7 @@ type Config struct {
 	StringValues       string   `split_words:"true"`                 // Argument to pass to --set-string in applicable helm commands
 	ValuesFiles        []string `split_words:"true"`                 // Arguments to pass to --values in applicable helm commands
 	Namespace          string   ``                                   // Kubernetes namespace for all helm commands
+	CreateNamespace    bool     `split_words:"true"`                 // Pass --create-namespace to `helm upgrade`
 	KubeToken          string   `split_words:"true"`                 // Kubernetes authentication token to put in .kube/config
 	SkipKubeconfig     bool     `envconfig:"skip_kubeconfig"`        // Skip kubeconfig creation
 	SkipTLSVerify      bool     `envconfig:"skip_tls_verify"`        // Put insecure-skip-tls-verify in .kube/config

internal/run/upgrade.go

@@ -23,6 +23,7 @@ type Upgrade struct {
 	atomic          bool
 	cleanupOnFail   bool
 	certs           *repoCerts
+	createNamespace bool
 
 	cmd cmd
 }
@@ -45,6 +46,7 @@ func NewUpgrade(cfg env.Config) *Upgrade {
 		atomic:          cfg.AtomicUpgrade,
 		cleanupOnFail:   cfg.CleanupOnFail,
 		certs:           newRepoCerts(cfg),
+		createNamespace: cfg.CreateNamespace,
 	}
 }
 
@@ -95,6 +97,9 @@ func (u *Upgrade) Prepare() error {
 	if u.stringValues != "" {
 		args = append(args, "--set-string", u.stringValues)
 	}
+	if u.createNamespace {
+		args = append(args, "--create-namespace")
+	}
 	for _, vFile := range u.valuesFiles {
 		args = append(args, "--values", vFile)
 	}