prepare release

Author: mattes

Makefile

@@ -2,7 +2,7 @@ example:
 	go build -mod vendor
 	(cd example && \
 	INPUT_CREDS=.google_application_credentials.json \
-	GITHUB_RUN_NUMBER=170 \
+	GITHUB_RUN_NUMBER=201 \
 	GITHUB_SHA=13e82dd30df4e87118faa98712a5aebb0ab05c45 \
 	../gce-deploy-action)
 

RELEASE.md

@@ -0,0 +1,7 @@
+# Release instructions
+
+1. Update `GCE_DEPLOY_VERSION` in [action.yml](action.yml) 
+2. Push latest to master branch
+3. Tag with `v1.x.x` and `v1`
+4. Create release in Github
+

action.yml

@@ -21,7 +21,7 @@ runs:
       shell: bash
       run: |
         cd /tmp
-        export GCE_DEPLOY_VERSION=3.0.1
+        export GCE_DEPLOY_VERSION=4.0.0
         wget --quiet https://github.com/mattes/gce-deploy-action/releases/download/v${GCE_DEPLOY_VERSION}/gce-deploy-action.linux.amd64
         sudo mv gce-deploy-action.linux.amd64 /usr/local/bin/gce-deploy-action
         sudo chmod +x /usr/local/bin/gce-deploy-action

deploy.go

@@ -65,7 +65,7 @@ func Run(githubActionConfig *GithubActionConfig, config *Config, deploy Deploy)
 		maxUnavailable += "%"
 	}
 
-	Infof("%v: Started rolling deploy for instance group '%v/%v' with Update Type: %v, Minimal Action: %v, Replacement Method: %v, Min Ready: %vsec, Max Surge: %v, Max Unavailable: %v",
+	Infof("%v: Started rolling deploy for instance group '%v/%v' with UpdateType:%v, MinimalAction:%v, ReplacementMethod:%v, MinReady:%vsec, MaxSurge:%v, MaxUnavailable:%v",
 		deploy.Name, deploy.Project, deploy.InstanceGroup, deploy.UpdatePolicy.Type, deploy.UpdatePolicy.MinimalAction, deploy.UpdatePolicy.ReplacementMethod, deploy.UpdatePolicy.minReadySec, maxSurge, maxUnavailable)
 
 	// start rolling update via instance group manager

google.go

@@ -154,7 +154,7 @@ func StartRollingUpdate(c *computeBeta.Service, d Deploy, instanceTemplateURL st
 	// TODO consider making the following check a configuration flag
 	latestVersion := findLatestInstanceGroupManagerVersion(ig.Versions)
 	if latestVersion != "" && !VersionLessThan(latestVersion, d.InstanceTemplate) {
-		return fmt.Errorf("update instance group: instance template '%v' is too old, because '%v' is the latest instance template.", d.InstanceTemplate, latestVersion)
+		return fmt.Errorf("update instance group: instance template '%v' is too old, the newer instance template '%v' is already deployed.", d.InstanceTemplate, latestVersion)
 	}
 
 	ig.InstanceTemplate = "" // make sure it's empty
@@ -175,8 +175,6 @@ func StartRollingUpdate(c *computeBeta.Service, d Deploy, instanceTemplateURL st
 	ig.UpdatePolicy.MinimalAction = d.UpdatePolicy.MinimalAction
 	ig.UpdatePolicy.ReplacementMethod = d.UpdatePolicy.ReplacementMethod
 
-	ig.UpdatePolicy.NullFields = []string{"InstanceRedistributionType"}
-
 	ig.UpdatePolicy.MinReadySec = int64(d.UpdatePolicy.minReadySec)
 	ig.UpdatePolicy.ForceSendFields = []string{"MinReadySec"}