Getting "docker: not found" when trying to build in Lab6
I've confirmed that bothe docker services are running (docker:dind, and jenkins). I also made sure that both plugins are installed (Docker pipeline and Docker plugin). but everytime it runs it failed to build, and I get:
/var/jenkins_home/workspace/docker-pipe-01@tmp/durable-5067c421/script.sh.copy: 1: docker: not found
or /var/jenkins_home/workspace/_worker-pipe_feature_dockerbuild@tmp/durable-d8576d0c/script.sh.copy: 1: docker: not found
depending on what part of the lab I try
Comments
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I'm getting a similar error for lab6:
WorkflowScript: 3: Invalid agent type "docker" specified. Must be one of [any, label, none] @ line 3, column 9.
docker {
^1 error
I have installed both the Docker and Docker-Pipeline plugins.
0 -
I just got it to build. I had to restart Jenkins after installing the Docker and Docker-Pipeline plugins.
0 -
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I've restarted jenkins and I've restarted the docker containers and I still get the same
0 -
I manually restarted jenkins, not via docker. https://stackoverflow.com/questions/8072700/how-to-restart-jenkins-manually. @jcasanas I don't know if this might help. I did http://localhost:8080/safeRestart.
1 -
Yes, it can be restarted from a URL and also from the command line. So, the command that @zacts mentioned will wait until all the jobs are finished, and then it will restart:
http://localhost:8080/safeRestart
If that doesn't work, you can try this one:
Regards,
Luis.0 -
that's exactly what I did first,the manual jenkins restart using both
saferestart
andrestart
and after that failed then I restarted the docker containers too0 -
I've now done the following:
- uninstalled all docker plug-ins in jenkins
- restarted jenkins via
http://<host>/restart
- installed docker plugin and restarted jenkins
- installed docker pipeline and restarted jenkins
- ran the build manually and I'm still getting the same error
+ docker inspect -f . maven:3.9.8-sapmachine-21 /var/jenkins_home/workspace/_worker-pipe_feature_dockerbuild@tmp/durable-21303b26/script.sh.copy: 1: docker: not found
- I've checked the
docker-compose.yml
file and everything looks correct - I did a
docker compose down
- changed
DOCKER_HOST
environment for the jenkins service fromtcp://docker:2376
totcp://localhost:2376
- brought back up the stack
- uninstalled all the docker plug-ins
- re-installed docker plug-ins
- ran build and got the same error
- brought back down the stack
- changed docker host env for jenkins service to
tcp://0.0.0.0:2376
- brought back up the stack
- ran build and it failed
- un-installed and re-installed the docker plug-ins and restarted jenkins
- ran the build and it still fails
- I shelled into the jenkins container with root and installed netcat
- ran
nc -vc <dind ip> 2376
and succeeded showing that the post is open - I was also able to ping and resolve the docker network ip for the dnd container
@luisviveropena any other Ideas you might have for me, I've ran out of ideas and I was able to confirm that the jenkins container is able to talk to the dind container over the docker port
2376
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Hi @jcasanas, what Jenkins version are you running?
I'll recreate the environment and do the test.Regards,
Luis.0 -
Jenkins 2.463
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@luisviveropena have you been able to recreate the environment. also to make sure that the dind container has docker running apropriatly I shelled into it and ran
docker run hello-world
. It ran without a problem0 -
SOLVED
I figured out what it was, It was the
docker-compose.yml
file and how it built the Jenkins service. I relooked at the compose file and noticed that it has it to build the Jenkins service both with aDockerfile
and using an image... see belowservices: jenkins: image: jenkins/jenkins:2.463-jdk17 build: context: . dockerfile: Dockerfile ports: - 8080:8080 - 50000:50000 environment: - DOCKER_HOST=tcp://docker:2376 - DOCKER_CERT_PATH=/certs/client - DOCKER_TLS_VERIFY=1 networks: - lfs261 hostname: jenkins privileged: true restart: always volumes: - jenkins-data:/var/jenkins_home - jenkins-docker-certs:/certs/client:ro depends_on: - docker
so I brought it back down and commented out
image: jenkins/jenkins:2.463-jdk17
from the compose file and brought the services back up. I forced a build both for the lab and for thedocker-pipe-01
project and they now both ran without a problem. I looks like because the service had both to be build from an image and a Dockerfile it got confused, so now it's only building from the Dockerfile and all looks good now.0 -
Hi @jcasanas,
I'm glad you found the issue and a workaround! I'm building the infrastructure from some labs before, so it will take me some time.
Regards,
Luis.0
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