Use ConfigMap for mongo configuration

[zonorti]

• For more fine-grained control on MongoDB configuration moving mongod.conf to ConfigMap from the container.
• To have the container more lightweight - switching to alpine. Should be enough for running bash scripts.
• ReplicaSet and ClusterRole added as values for easier multi-shard cluster creation. Also added as labels for discovery purpose.

[k8s-ci-robot]

Can a kubernetes member verify that this patch is reasonable to test? If so, please reply with "@k8s-bot ok to test" on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands will still work. Regular contributors should join the org to skip this step.

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[googlebot]

CLAs look good, thanks!

[prydonius]

@k8s-bot ok to test

[viglesiasce]

@foxish can you take a look at this one? The image is not currently pushed either so once if it looks good can you go ahead and push it?

Also keep in mind currently:
#242

[foxish]

@viglesiasce I'll take a look at it today and push the image as well. Thanks!

[foxish]

Merge conflicts need to be fixed? @imelnik

[viglesiasce]

Thanks @foxish!

@imelnik the chart changed to the mongodb-replicaset folder so the files will need to be moved.

[zonorti]

@foxish @viglesiasce sure, I would update this PR

[zonorti]

@k8s-bot e2e test this

[k8s-ci-robot]

@imelnik: you can't request testing unless you are a kubernetes member.

In response to this comment:

@k8s-bot e2e test this

If you have questions or suggestions related to this bot's behavior, please file an issue against the kubernetes/test-infra repository.

[zonorti]

@foxish this e2e fail looks like a Jenkins problem
or is there something to fix?

[foxish]

@k8s-bot e2e test this

[foxish]

The change LGTM. I'm trying to deploy it once but helm seems to have issues when I have a cluster spun up using Kubernetes release-1.5.

[foxish]

W1124 01:47:10.109] Error: release mongodb-246 failed: Namespace "pr-master:14bee1e456c1789d1ebdfc2dc7e3ae2b9ea930ce,223:a5e1b12e9605de227f330a40a3dedcd5f1e5c6c2-246" is invalid: [metadata.name: Invalid value: "pr-master:14bee1e456c1789d1ebdfc2dc7e3ae2b9ea930ce,223:a5e1b12e9605de227f330a40a3dedcd5f1e5c6c2-246": must be no more than 63 characters, metadata.name: Invalid value: "pr-master:14bee1e456c1789d1ebdfc2dc7e3ae2b9ea930ce,223:a5e1b12e9605de227f330a40a3dedcd5f1e5c6c2-246": must match the regex a-z0-9? (e.g. 'my-name' or '123-abc')]

@viglesiasce This looks like an e2e testing framework issue. Any ideas why it's picking a large garbled namespace to deploy?

[viglesiasce]

@foxish looks like something has changed on the Jenkins side. The ghprbPullId is now showing as that rather than the PR Id. Will look today.

[viglesiasce]

Opened kubernetes/test-infra#1253, sorry for the churn folks.

[spxtr]

@k8s-bot e2e test this

[zonorti]

@viglesiasce thanks for checking tests!

[viglesiasce]

@foxish can you push the image when you get a chance?

[foxish]

@viglesiasce On it

[foxish]

gcr.io/google_containers/mongodb-install:0.3
0.3: digest: sha256:46d232cd66435c4ed0565818a45c326b00fa95fe65af171400fc0501b1cd578f size: 1157

Done.

[foxish]

I still can't test this.
Is there an issue with running helm on the latest master/HEAD?

$ kubectl version
Client Version: version.Info{Major:"1", Minor:"6+", GitVersion:"v1.6.0-alpha.0.986+a2d5df40af698a", GitCommit:"a2d5df40af698a801556f4524a2642e37001e0bb", GitTreeState:"clean", BuildDate:"2016-12-01T21:11:03Z", GoVersion:"go1.7.3", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"6+", GitVersion:"v1.6.0-alpha.0.986+a2d5df40af698a", GitCommit:"a2d5df40af698a801556f4524a2642e37001e0bb", GitTreeState:"clean", BuildDate:"2016-12-01T21:08:51Z", GoVersion:"go1.7.3", Compiler:"gc", Platform:"linux/amd64"}

$ helm init
$HELM_HOME has been configured at $HOME/.helm.
Warning: Tiller is already installed in the cluster. (Use --client-only to suppress this message.)
Happy Helming!

$ helm version
Client: &version.Version{SemVer:"v2.0.0", GitCommit:"51bdad42756dfaf3234f53ef3d3cb6bcd94144c2", GitTreeState:"clean"}
Server: &version.Version{SemVer:"v2.0.0", GitCommit:"51bdad42756dfaf3234f53ef3d3cb6bcd94144c2", GitTreeState:"clean"}

$ helm install mongodb-replicaset/
Error: transport is closing

$ helm install mongodb-replicaset/
Error: could not find a ready tiller pod

$ helm version
Client: &version.Version{SemVer:"v2.0.0", GitCommit:"51bdad42756dfaf3234f53ef3d3cb6bcd94144c2", GitTreeState:"clean"}
Error: cannot connect to Tiller

[viglesiasce]

I am able to install on a 1.4.x cluster but seeing the following in the bootstrap init container:

2016/12/02 06:48:16 lookup smelly-indri-mongodb-rep on 10.19.240.10:53: server misbehaving
2016/12/02 06:48:17 lookup smelly-indri-mongodb-rep on 10.19.240.10:53: server misbehaving

[zonorti]

I guess it makes sense to wait till 1.5 release and have it updated at that time

[foxish]

@imelnik I made a couple of changes to your PR, to work with StatefulSets in k8s1.5. I see the same issue as @viglesiasce did with the bootstrap container. PTAL.

[foxish]

@imelnik @viglesiasce Pushed commit to fix the issue with bootstrap. It works well on my local setup.
The only update needed is to test.sh, to change the name of the pod from mongodb- to mongodb-rs-.

This is ready for merge once that change is made.

[viglesiasce]

Awesome stuff. Thanks @imelnik and @foxish!!!

[viglesiasce]

@k8s-bot e2e test this

[k8s-ci-robot]

Jenkins Charts e2e failed for commit afd64d2. Full PR test history.

The magic incantation to run this job again is @k8s-bot e2e test this. Please help us cut down flakes by linking to an open flake issue when you hit one in your PR.

[foxish]

@viglesiasce We're not testing on a 1.5 cluster yet? I updated the reference to StatefulSet and that seems to be why it's failing.

[viglesiasce]

Correct. We will move to 1.5 once GKE has it ready. Until then we wont block this (or other SS prs). Once CI is pointing to 1.5 I will send a PR to move this to the stable folder.

[zonorti]

@viglesiasce @foxish thanks for updating and megring this one!
I've managed to build one with auto restoring mongo from snapshot, ping me if you think that is worth being public