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RELEASE.md

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Release Process

This application is distributed as Docker-compatible container images. The images are tagged using semver identifiers, for example v1.0.0.

Cutting a release

This repo has a Makefile which does all the heavy lifting.

1. Sync to master

Before you start, make sure you are synced to the current HEAD of the master branch. A common pattern is:

$ git fetch upstream

$ git rebase upstream/master
Current branch master is up to date.

2. Make sure your git repo is clean

$ git status

Make sure any new files are added, and all changes are committed.

3. Make sure it builds and tests pass

$ make clean all test
building: bin/amd64/spartakus
Running tests:
?       github.com/kubernetes-incubator/spartakus/cmd/spartakus	[no test files]
ok      github.com/kubernetes-incubator/spartakus/pkg/collector	0.033s
?       github.com/kubernetes-incubator/spartakus/pkg/database	[no test files]
?       github.com/kubernetes-incubator/spartakus/pkg/report	[no test files]
?       github.com/kubernetes-incubator/spartakus/pkg/version	[no test files]
ok      github.com/kubernetes-incubator/spartakus/pkg/volunteer	0.152s

Checking gofmt: PASS

Checking go vet: PASS

4. Tag it

Do not force-change a tag once it has been published upstream. Always follow semver for version numbers.

$ git tag -a v1.0.0 -m "v1.0.0"
Updated tag 'v1.0.0' (was a813ed1)

5. Build and push the image

$ make push
building: bin/amd64/spartakus
Sending build context to Docker daemon 124.7 MB
Step 1 : FROM alpine:3.4
 ---> 5f05d2ba9e65
Step 2 : MAINTAINER Tim Hockin <thockin@google.com>
 ---> Using cache
 ---> 9fc31ca429cf
Step 3 : ARG ARCH
 ---> Using cache
 ---> 5825caf919cf
Step 4 : ADD bin/${ARCH}/spartakus /spartakus
 ---> Using cache
 ---> 01df31f8d33c
Step 5 : RUN apk update --no-cache && apk add ca-certificates
 ---> Using cache
 ---> 9d5a07404110
Step 6 : ENTRYPOINT /spartakus
 ---> Using cache
 ---> 1b5c33110ccf
Successfully built 1b5c33110ccf
The push refers to a repository [gcr.io/google_containers/spartakus-amd64] (len: 1)
1b5c33110ccf: Image already exists
9d5a07404110: Image already exists
01df31f8d33c: Image already exists
5f05d2ba9e65: Image already exists
v1.0.0: digest: sha256:f7f137170f1624120ac716b8b9b848c7a6deb005873fb9a68e0e229dfff4531a size: 9352

pushed: gcr.io/google_containers/spartakus-amd64:v1.0.0

6. Publish the release

https://github.com/kubernetes-incubator/spartakus/releases/new