chapter8 Using Docker to Simplify CI Pipelines(Cannot connect to the Docker daemon)

I create docker environment for chapter8.
I installed by referring to the link below
https://docs.docker.com/engine/install/debian/
But I couldn't start docker.
Client: Docker Engine - Community
Version: 19.03.13
API version: 1.40
Go version: go1.13.15
Git commit: 4484c46d9d
Built: Wed Sep 16 17:03:03 2020
OS/Arch: linux/amd64
Experimental: false
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
Please let me know if there is a solution.
Comments
-
Hi @maseita ,
I did a test case on Debian 10 and it worked. Can you do 'systemctl status docker.socket' and paste the output, please? Do the same for 'systemctl status docker.service'.
Regards,
Luis.0 -
Thank you for reply.
First of all, I explain my environment.
OS: GCP Debian GNU/Linux 10 \n \l
Jenkins: latest (docker image)
I installed by following command.
docker container run -itd --name jenkins -P -p 8080:8080 -v jenkins_home:/var/jerkins_home
-v /var/run/docker.sock:/var/run/docekr.sock jenkins/jenkins:latestI checked the execution result of 'systemctl status docker.socket'
root@0cbaf0792da9:/# systemctl status docker.socket
Failed to connect to bus: No such file or directoryBest Regards.
0 -
Hi @maseita ,
1.- First, I think the command 'docker container run -itd --name jenkins -P -p 8080:8080 -v jenkins_home:/var/jerkins_home
-v /var/run/docker.sock:/var/run/docekr.sock jenkins/jenkins:latest' has an error:You are using the -P and -p parameters, and they are exclusive. I mean, with -P you instruct Docker to choose a random port, and with -p you are specifying the ports. So you need to use -P or -p .
2.- Are you sure you have installed docker? Can you run the 'hello-world' to test your installation, please?
https://hub.docker.com/_/hello-world
You just need to do: docker run hello-world
And should have the following output:
docker run hello-world
Hello from Docker!
This message shows that your installation appears to be working correctly.To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bashShare images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/For more examples and ideas, visit:
https://docs.docker.com/get-started/Regards,
Luis.0 -
Thank you for reply.
my host machine environment is as follows.
g4masemita@jenkins-debian:~$ docker version
Client: Docker Engine - Community
Version: 19.03.13
API version: 1.40
Go version: go1.13.15
Git commit: 4484c46d9d
Built: Wed Sep 16 17:02:55 2020
OS/Arch: linux/amd64
Experimental: false
Server: Docker Engine - Community
Engine:
Version: 19.03.13
API version: 1.40 (minimum version 1.12)
Go version: go1.13.15
Git commit: 4484c46d9d
Built: Wed Sep 16 17:01:25 2020
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.3.7
GitCommit: 8fba4e9a7d01810a393d5d25a3621dc101981175
runc:
Version: 1.0.0-rc10
GitCommit: dc9208a3303feef5b3839f4323d9beb36df0a9dd
docker-init:
Version: 0.18.0
GitCommit: fec3683g4masemita@jenkins-debian:~$ docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
0e03bdcc26d7: Pull complete
Digest: sha256:4cf9c47f86df71d48364001ede3a4fcd85ae80ce02ebad74156906caff5378bc
Status: Downloaded newer image for hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/g4masemita@jenkins-debian:~$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STA
TUS PORTS NAMES
1700a79c4c54 jenkins/jenkins:latest "/sbin/tini -- /usr/…" 10 seconds ago Up
5 seconds 0.0.0.0:8080->8080/tcp, 50000/tcp jenkinsI think that Docker is running on my host machine.
Is this confirmation correct?
Best Regards.
0 -
Hi @maseita ,
I think I found what's failing: so, you have Docker installed and working in your host, which is good, and that's why you can run Jenkins as a container. But for this lab, you need to install Docker into the Jenkins container. So I guess you missed that step.
You can see section Install Docker inside Jenkins Container in the lab, and follow the instructions.
I hope that helps
Luis.0 -
@maseita yes, as @luisviveropena mentions, docker needs to be installed and configured (authorisation) to run from inside the container running jenkins. Please refer the Lab Guide for the script to do so.
0
Categories
- All Categories
- 51 LFX Mentorship
- 104 LFX Mentorship: Linux Kernel
- 576 Linux Foundation IT Professional Programs
- 304 Cloud Engineer IT Professional Program
- 125 Advanced Cloud Engineer IT Professional Program
- 53 DevOps Engineer IT Professional Program
- 61 Cloud Native Developer IT Professional Program
- 5 Express Training Courses
- 5 Express Courses - Discussion Forum
- 2.1K Training Courses
- 19 LFC110 Class Forum
- 7 LFC131 Class Forum
- 27 LFD102 Class Forum
- 158 LFD103 Class Forum
- 20 LFD121 Class Forum
- 1 LFD137 Class Forum
- 61 LFD201 Class Forum
- 1 LFD210 Class Forum
- LFD210-CN Class Forum
- 1 LFD213 Class Forum - Discontinued
- 128 LFD232 Class Forum
- LFD237 Class Forum
- 23 LFD254 Class Forum
- 611 LFD259 Class Forum
- 105 LFD272 Class Forum
- 1 LFD272-JP クラス フォーラム
- 1 LFD273 Class Forum
- 2 LFS145 Class Forum
- 25 LFS200 Class Forum
- 739 LFS201 Class Forum
- 1 LFS201-JP クラス フォーラム
- 11 LFS203 Class Forum
- 75 LFS207 Class Forum
- 300 LFS211 Class Forum
- 54 LFS216 Class Forum
- 47 LFS241 Class Forum
- 41 LFS242 Class Forum
- 37 LFS243 Class Forum
- 11 LFS244 Class Forum
- 37 LFS250 Class Forum
- 1 LFS250-JP クラス フォーラム
- LFS251 Class Forum
- 141 LFS253 Class Forum
- LFS254 Class Forum
- 1.1K LFS258 Class Forum
- 10 LFS258-JP クラス フォーラム
- 93 LFS260 Class Forum
- 132 LFS261 Class Forum
- 33 LFS262 Class Forum
- 80 LFS263 Class Forum
- 15 LFS264 Class Forum
- 11 LFS266 Class Forum
- 18 LFS267 Class Forum
- 18 LFS268 Class Forum
- 23 LFS269 Class Forum
- 203 LFS272 Class Forum
- 1 LFS272-JP クラス フォーラム
- LFS274 Class Forum
- LFS281 Class Forum
- 236 LFW211 Class Forum
- 172 LFW212 Class Forum
- 7 SKF100 Class Forum
- SKF200 Class Forum
- 903 Hardware
- 219 Drivers
- 74 I/O Devices
- 44 Monitors
- 116 Multimedia
- 209 Networking
- 101 Printers & Scanners
- 85 Storage
- 763 Linux Distributions
- 88 Debian
- 66 Fedora
- 15 Linux Mint
- 13 Mageia
- 24 openSUSE
- 142 Red Hat Enterprise
- 33 Slackware
- 13 SUSE Enterprise
- 357 Ubuntu
- 479 Linux System Administration
- 41 Cloud Computing
- 70 Command Line/Scripting
- Github systems admin projects
- 95 Linux Security
- 78 Network Management
- 108 System Management
- 49 Web Management
- 68 Mobile Computing
- 23 Android
- 30 Development
- 1.2K New to Linux
- 1.1K Getting Started with Linux
- 538 Off Topic
- 131 Introductions
- 217 Small Talk
- 22 Study Material
- 826 Programming and Development
- 278 Kernel Development
- 514 Software Development
- 928 Software
- 260 Applications
- 184 Command Line
- 3 Compiling/Installing
- 76 Games
- 316 Installation
- 61 All In Program
- 61 All In Forum
Upcoming Training
-
August 20, 2018
Kubernetes Administration (LFS458)
-
August 20, 2018
Linux System Administration (LFS301)
-
August 27, 2018
Open Source Virtualization (LFS462)
-
August 27, 2018
Linux Kernel Debugging and Security (LFD440)