Docker not found in Pipeline: to resolve docker cmd > Block pipeline execution

[Juju075]

Container isolé. Pour que Jenkins puisse executer les shells docker .

Non chaque conteneur sont gerer par une version light de docker. pour executer les shell utiliser le socket de docker (daemon) monte un volume du socket dans le conteneur

Socket d'ecoute daemon Docker mount volume on jenkins /var/run/docker.sock:/var/run/docker.sock

[Juju075]

https://www.jenkins.io/doc/book/pipeline/docker/

[Juju075]

try this docker run --rm -u root -p 8080:8080 -v jenkins-data:/var/jenkins_home -v $(which docker):/usr/bin/docker -v /var/run/docker.sock:/var/run/docker.sock -v "$HOME":/home jenkinsci/blueocean

[Juju075]

Apache conf *:80 not dynamic need to be set before -u root docker run -u root nom_de_l_image

[Juju075]

problem come from plugin Docker pipeline

https://stackoverflow.com/questions/63230695/jenkins-declarative-pipeline-problem-when-running-docker-in-docker

[Juju075]

ok - agent { docker { image 'node:16.13.1-alpine' } }

node configuration launch docker container to resolve build need to be configured.

use this image alpine:latest

ok - node.js (official) alpine(lighter & latest)

node:18.16-alpine https://hub.docker.com/layers/library/node/18.16-alpine/images/sha256-44aaf1ccc80eaed6572a0f2ef7d6b5a2982d54481e4255480041ac92221e2f11?context=explore

Not found in DockerHub (jenkins)

Find a alpinelinux/dockercli 1M downloaded - not working on pipeline

This will be the one but can't image from docker hub

pipeline {
    agent {
        docker { image 'node:18.16-alpine' }
    }

configure docker as agent and locate repectory

[Juju075]

ok -Not explained in jenkins documentation Setup Docker Containers as Build Agents for Jenkins

remote api
4243:32768

32768 to 60999 is used by Docker to assign a host port for Jenkins to connect to the container https://docs.docker.com/engine/install/

1- Docker Host

Ports: | ok Docker Remote API port 4243 Docker Hostport Range 32768 to 60999

Networks test (ping) connect: api;

mount volumes and persist data 1- var/www 2- log/apache2 3- apache2/sites-availe/ 4- database 5- jenkins home 6- jenkins 7 - /lib/systemd/system/httpd.service

httpd.service | ok update ExecStart to ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:4243 -H unix:///var/run/docker.sock

Reload and restart docker service.

2- Create a Jenkins Agent Docker Image

[Juju075]

test