Code-server: Docker In Docker for code-server

[Rakiah]

I've been trying to fiddle with the Dockerfile of code-server to add support for Docker in Docker but without success, I tried numerous ubuntu images but then code-server will have problem running:

those are the ones I tested:
https://hub.docker.com/r/billyteves/ubuntu-dind
https://hub.docker.com/r/jazzypro/ubuntu-dind
https://hub.docker.com/r/ciiichy/ubuntu-dind-git
https://hub.docker.com/r/ceregousa/dind
https://hub.docker.com/r/huksley/ubuntu-dind/dockerfile

most of the times i'm getting

{"data":"Error: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /root/project/.local/share/code-server/dependencies/spdlog.node)\n    at Object.Module._extensions..node (module.js:682:18)\n    at Module.load (module.js:566:32)\n    at tryModuleLoad (module.js:506:12)\n    at Function.Module._load (module.js:498:3)\n    at Module.require (module.js:597:17)\n    at Module.patchedRequire [as require] (eval at exports.requireModule (/usr/local/bin/code-server:468:27625), <anonymous>:6615:46)\n    at require (internal/module.js:11:18)\n    at f (/usr/local/bin/code-server:2281:1092)\n    at u (/usr/local/bin/code-server:2281:1344)\n    at c (/usr/local/bin/code-server:2281:2750)\n    at b.require (/usr/local/bin/code-server:2281:3346)\n    at Object../lib/vscode/node_modules/spdlog/index.js (eval at exports.requireModule (/usr/local/bin/code-server:468:27625), <anonymous>:28679:16)\n    at __webpack_require__ (eval at exports.requireModule (/usr/local/bin/code-server:468:27625), <anonymous>:26:30)\n    at Object.createSpdLogService (eval at exports.requireModule (/usr/local/bin/code-server:468:27625), <anonymous>:157268:29)\n    at main (eval at exports.requireModule (/usr/local/bin/code-server:468:27625), <anonymous>:77357:92)\n    at eval (eval at exports.requireModule (/usr/local/bin/code-server:468:27625), <anonymous>:77449:13)\n    at Generator.next (<anonymous>)\n    at fulfilled (eval at exports.requireModule (/usr/local/bin/code-server:468:27625), <anonymous>:77333:58)\n    at <anonymous>\n    at process._tickCallback (internal/process/next_tick.js:189:7)\n"}
code-server_1     | INFO  Retrying shared process in 8s {"error":"Exited with null"}

when code-server is trying to boot up, do you have any idea to do what i'm trying to achieve ?

[PhilsLab]

See #190

[Rakiah]

To be honest i didn't really understood how to apply #190 to my problem ?

[jeasonstudio]

@Rakiah see https://github.com/codercom/code-server/issues/23#issuecomment-471141576

[sr229]

Hey @Rakiah, here's an idea from me:

• use the DIND image from PWD (they have a Ubuntu version)
• install the required dependencies (net-tools)
• Pull code-server from releases.

[Rakiah]

OK I see that #190 would sove it using Kubernetes
sadly we don't use kubernetes at work and I dont have a PHD in kubernetology :(

I've been trying to find an image called DIND under PWD in hub.docker.com but didn't find anything, can you provide a link for that please @sr229
thanks for your help

[Rakiah]

EDIT:

I think I found the DIND image you're speaking about:
https://hub.docker.com/r/franela/dind/tags

I'll check and update my results

[Rakiah]

seems like 18.09 ubuntu is not enough neither:
ERROR SHARED stderr {"data":"Error: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /root/project/.local/share/code-server/dependencies/spdlog.node
got the same error

[StiviiK]

You could also use the docker:dind as a side-car.
Install docker normally in the code-server image, create a docker:dind container and link it to the code-server-container, you should be able to use docker in code-server.

Update, tested works:

[Rakiah]

Stivik, may you provide steps for this ?
How would I link the docker:dind container to code-server ?

[arukaen]

Stivik, may you provide steps for this ?
How would I link the docker:dind container to code-server ?

https://docs.docker.com/network/links/

[Rakiah]

Ok that's also what I tought but I may misunderstood the points of docker link because I didnt think that would work, will try !

[sr229]

@arukaen I don't recommend suggesting deprecated Docker APIs and CLI commands to solve a solution.

@Rakiah While this might be a temporary solution, keep in mind Docker links are deprecated.

[Rakiah]

Docker link itself was not enough:
i've created a network between the two container, installed docker-cli in the code-server container and exported the docker host like this in the code-server container:
export DOCKER_HOST="tcp://dind:2375"
(dind is the docker in docker container)

this seems to work for my needs

[kylecarbs]

Seems like this might not be a docker-in-docker issue and a GLIBC issue. We lowered the GLIBC requirement a while back, could you try again?

[Rakiah]

I found my answer during this thread and do not have the problem anymore thank you @kylecarbs we can close this

[sr229]

CC @kylecarbs or @coadler to close the issue as per request by the author

[matthew-parlette]

In case anyone is looking to do this with kubernetes, here is my deployment I'm using that has this working as far as I've tested:

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: code-server
  namespace: default
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: code-server
    spec:
      initContainers:
      - name: copy-docker-binary
        image: docker:stable-dind
        command: ['sh', '-c', 'cp /usr/local/bin/docker /code-server-bin/']
        volumeMounts:
        - name: code-server-usr-local-bin
          mountPath: /code-server-bin
      containers:
      - name: code-server
        image: linuxserver/code-server
        imagePullPolicy: Always
        ports:
        - containerPort: 8443
          name: https
        envFrom:
        - configMapRef:
            name: code-server
        - secretRef:
            name: code-server
        volumeMounts:
        - name: config
          mountPath: /config
          readOnly: false
        - name: code-server-usr-local-bin
          mountPath: /usr/local/bin
      - name: dind-daemon
        image: docker:stable-dind
        env:
        - name: DOCKER_TLS_CERTDIR
          value: ""
        resources:
          requests:
            cpu: 20m
            memory: 512Mi
        securityContext:
            privileged: true
        volumeMounts:
          - name: docker-graph-storage
            mountPath: /var/lib/docker
      volumes:
      - name: config
        persistentVolumeClaim:
          claimName: code-server-config
      - name: docker-graph-storage
        emptyDir: {}
      - name: code-server-usr-local-bin
        emptyDir: {}

Let me know if you need my other resources for this, but I believe everything for this issue is covered in this deployment.

[sr229]

Would appreciate if you can do a documentation PR for this as well since people might want to run Docker development in Docker-based code-server.