I want to install Docker CE from binaries on a remote RHEL VM using Ansible. I've followed steps mentioned in guide and made a playbook. I skipped the optional third step because I'm using full path to the executable. However, when my script gets to the step 4 - starting the Docker daemon, it does not start.
The debug output I see is:
TASK [Debug] *********************************************************************************************************************************************************************************************************************************
ok: [10.230.166.49] => {
"tmp": {
"changed": true,
"cmd": "sudo /root/docker/dockerd &",
"delta": "0:00:00.025462",
"end": "2018-02-16 22:26:58.213010",
"failed": false,
"rc": 0,
"start": "2018-02-16 22:26:58.187548",
"stderr": "time=\"2018-02-16T22:26:58.211441819-05:00\" level=warning msg=\"could not change group /var/run/docker.sock to docker: group docker not found\"\nFailed to connect to containerd: exec: \"docker-containerd\": executable file not found in $PATH",
"stderr_lines": [
"time=\"2018-02-16T22:26:58.211441819-05:00\" level=warning msg=\"could not change group /var/run/docker.sock to docker: group docker not found\"",
"Failed to connect to containerd: exec: \"docker-containerd\": executable file not found in $PATH"
],
"stdout": "",
"stdout_lines": [],
"warnings": [
"Consider using 'become', 'become_method', and 'become_user' rather than running sudo"
]
} }
Here is my Ansible playbook:
---
- hosts: remotes
become: yes
tasks:
- name: Fetch docker version
shell: docker version 2>&1 | grep Version | awk '{print $2}'
register: docker_version
- name: Check if docker is installed, download binary otherwise
command: curl -O https://download.docker.com/linux/static/stable/x86_64/docker-17.12.0-ce.tgz
when: docker_version.stdout == ''
- name: Extract binary
unarchive:
src: /root/docker-17.12.0-ce.tgz
dest: /root/
remote_src: yes
when: docker_version.stdout == ''
- name: start docker
shell: sudo /root/docker/dockerd &
register: tmp
- name: Debug
debug:
var: tmp
On a side note, I logged onto remote VM and ran
ls -al docker
and found that directory docker that I get after the binary's been extracted belongs to a group vradeploy. Here's the output :
total 107112
drwxr-xr-x 2 root vradeploy 4096 Dec 27 15:13 .
dr-xr-x---. 7 root root 4096 Feb 16 20:53 ..
-rwxr-xr-x 1 root vradeploy 19938610 Dec 27 15:13 docker
-rwxr-xr-x 1 root vradeploy 15433832 Dec 27 15:13 docker-containerd
-rwxr-xr-x 1 root vradeploy 12773768 Dec 27 15:13 docker-containerd-ctr
-rwxr-xr-x 1 root vradeploy 4320064 Dec 27 15:13 docker-containerd-shim
-rwxr-xr-x 1 root vradeploy 46366152 Dec 27 15:13 dockerd
-rwxr-xr-x 1 root vradeploy 760040 Dec 27 15:13 docker-init
-rwxr-xr-x 1 root vradeploy 2517244 Dec 27 15:13 docker-proxy
-rwxr-xr-x 1 root vradeploy 7550928 Dec 27 15:13 docker-runc
Just spent a bit of time with this for you to see if I could figure it out. The playbook below is what I was able to put together for you that did work. Although it is a bit different than your original code. But just wanted to share this with you and see if it could be of any help to you.
- hosts: test_nodes
vars:
_docker_version: 17.12.0
tasks:
- group:
name: docker
state: present
become: true
- name: Setting HOME Directory Path
set_fact:
_home: "{{ ansible_env['HOME'] }}"
- name: Fetch docker version
shell: docker version 2>&1 | grep Version | awk '{print $2}'
register: docker_version
- name: Check if docker is installed, download binary otherwise
get_url:
url: "https://download.docker.com/linux/static/stable/x86_64/docker-{{ _docker_version }}-ce.tgz"
dest: "{{ _home }}"
when: docker_version.stdout == ''
- name: Extract binary
unarchive:
src: "{{ _home }}/docker-{{ _docker_version }}-ce.tgz"
dest: "{{ _home }}/"
remote_src: yes
creates: "{{ _home }}/docker/dockerd"
when: docker_version.stdout == ''
- name: Copy Docker Binaries to /usr/bin
shell: cp {{ _home }}/docker/docker* /usr/bin/
args:
creates: /usr/bin/docker
become: true
- name: start docker
shell: dockerd &
become: true
args:
creates: /var/run/docker.pid
register: tmp
- name: Debug
debug:
var: tmp
Which resulted in the following:
TASK [start docker] ************************************************************************************************************************************************************
Sunday 18 February 2018 01:25:17 -0500 (0:00:00.492) 0:00:09.419 *******
changed: [node0]
TASK [Debug] *******************************************************************************************************************************************************************
Sunday 18 February 2018 01:25:19 -0500 (0:00:01.357) 0:00:10.776 *******
ok: [node0] => {
"tmp": {
"changed": true,
"cmd": "dockerd &",
"delta": "0:00:01.135519",
"end": "2018-02-18 01:25:19.879137",
"failed": false,
"rc": 0,
"start": "2018-02-18 01:25:18.743618",
"stderr": "time=\"2018-02-18T01:25:18.758962434-05:00\" level=info msg=\"libcontainerd: started new docker-containerd process\" pid=20346\ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"starting containerd\" module=containerd revision=89623f28b87a6004d4b785663257362d1658a729 version=v1.0.0 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"setting subreaper...\" module=containerd \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"changing OOM score to -500\" module=containerd \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.content.v1.content\"...\" module=containerd type=io.containerd.content.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.snapshotter.v1.btrfs\"...\" module=containerd type=io.containerd.snapshotter.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=warning msg=\"failed to load plugin io.containerd.snapshotter.v1.btrfs\" error=\"path /var/lib/docker/containerd/daemon/io.containerd.snapshotter.v1.btrfs must be a btrfs filesystem to be used with the btrfs snapshotter\" module=containerd \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.snapshotter.v1.overlayfs\"...\" module=containerd type=io.containerd.snapshotter.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.metadata.v1.bolt\"...\" module=containerd type=io.containerd.metadata.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=warning msg=\"could not use snapshotter btrfs in metadata plugin\" error=\"path /var/lib/docker/containerd/daemon/io.containerd.snapshotter.v1.btrfs must be a btrfs filesystem to be used with the btrfs snapshotter\" module=\"containerd/io.containerd.metadata.v1.bolt\" \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.differ.v1.walking\"...\" module=containerd type=io.containerd.differ.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.gc.v1.scheduler\"...\" module=containerd type=io.containerd.gc.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.containers\"...\" module=containerd type=io.containerd.grpc.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.content\"...\" module=containerd type=io.containerd.grpc.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.diff\"...\" module=containerd type=io.containerd.grpc.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.events\"...\" module=containerd type=io.containerd.grpc.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.healthcheck\"...\" module=containerd type=io.containerd.grpc.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.images\"...\" module=containerd type=io.containerd.grpc.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.leases\"...\" module=containerd type=io.containerd.grpc.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.namespaces\"...\" module=containerd type=io.containerd.grpc.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.snapshots\"...\" module=containerd type=io.containerd.grpc.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.monitor.v1.cgroups\"...\" module=containerd type=io.containerd.monitor.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.runtime.v1.linux\"...\" module=containerd type=io.containerd.runtime.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.tasks\"...\" module=containerd type=io.containerd.grpc.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.version\"...\" module=containerd type=io.containerd.grpc.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.introspection\"...\" module=containerd type=io.containerd.grpc.v1 \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=serving... address=\"/var/run/docker/containerd/docker-containerd-debug.sock\" module=\"containerd/debug\" \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=serving... address=\"/var/run/docker/containerd/docker-containerd.sock\" module=\"containerd/grpc\" \ntime=\"2018-02-18T01:25:18-05:00\" level=info msg=\"containerd successfully booted in 0.002771s\" module=containerd \ntime=\"2018-02-18T01:25:18.775686433-05:00\" level=info msg=\"[graphdriver] using prior storage driver: overlay2\"\ntime=\"2018-02-18T01:25:18.780002053-05:00\" level=info msg=\"Graph migration to content-addressability took 0.00 seconds\"\ntime=\"2018-02-18T01:25:18.780501640-05:00\" level=info msg=\"Loading containers: start.\"\ntime=\"2018-02-18T01:25:18.840608687-05:00\" level=info msg=\"Default bridge (docker0) is assigned with an IP address 172.17.0.0/16. Daemon option --bip can be used to set a preferred IP address\"\ntime=\"2018-02-18T01:25:18.859447845-05:00\" level=info msg=\"Loading containers: done.\"\ntime=\"2018-02-18T01:25:18.863941249-05:00\" level=info msg=\"Docker daemon\" commit=c97c6d6 graphdriver(s)=overlay2 version=17.12.0-ce\ntime=\"2018-02-18T01:25:18.863990869-05:00\" level=info msg=\"Daemon has completed initialization\"\ntime=\"2018-02-18T01:25:18.877109649-05:00\" level=info msg=\"API listen on /var/run/docker.sock\"",
"stderr_lines": [
"time=\"2018-02-18T01:25:18.758962434-05:00\" level=info msg=\"libcontainerd: started new docker-containerd process\" pid=20346",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"starting containerd\" module=containerd revision=89623f28b87a6004d4b785663257362d1658a729 version=v1.0.0 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"setting subreaper...\" module=containerd ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"changing OOM score to -500\" module=containerd ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.content.v1.content\"...\" module=containerd type=io.containerd.content.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.snapshotter.v1.btrfs\"...\" module=containerd type=io.containerd.snapshotter.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=warning msg=\"failed to load plugin io.containerd.snapshotter.v1.btrfs\" error=\"path /var/lib/docker/containerd/daemon/io.containerd.snapshotter.v1.btrfs must be a btrfs filesystem to be used with the btrfs snapshotter\" module=containerd ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.snapshotter.v1.overlayfs\"...\" module=containerd type=io.containerd.snapshotter.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.metadata.v1.bolt\"...\" module=containerd type=io.containerd.metadata.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=warning msg=\"could not use snapshotter btrfs in metadata plugin\" error=\"path /var/lib/docker/containerd/daemon/io.containerd.snapshotter.v1.btrfs must be a btrfs filesystem to be used with the btrfs snapshotter\" module=\"containerd/io.containerd.metadata.v1.bolt\" ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.differ.v1.walking\"...\" module=containerd type=io.containerd.differ.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.gc.v1.scheduler\"...\" module=containerd type=io.containerd.gc.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.containers\"...\" module=containerd type=io.containerd.grpc.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.content\"...\" module=containerd type=io.containerd.grpc.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.diff\"...\" module=containerd type=io.containerd.grpc.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.events\"...\" module=containerd type=io.containerd.grpc.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.healthcheck\"...\" module=containerd type=io.containerd.grpc.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.images\"...\" module=containerd type=io.containerd.grpc.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.leases\"...\" module=containerd type=io.containerd.grpc.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.namespaces\"...\" module=containerd type=io.containerd.grpc.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.snapshots\"...\" module=containerd type=io.containerd.grpc.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.monitor.v1.cgroups\"...\" module=containerd type=io.containerd.monitor.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.runtime.v1.linux\"...\" module=containerd type=io.containerd.runtime.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.tasks\"...\" module=containerd type=io.containerd.grpc.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.version\"...\" module=containerd type=io.containerd.grpc.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"loading plugin \"io.containerd.grpc.v1.introspection\"...\" module=containerd type=io.containerd.grpc.v1 ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=serving... address=\"/var/run/docker/containerd/docker-containerd-debug.sock\" module=\"containerd/debug\" ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=serving... address=\"/var/run/docker/containerd/docker-containerd.sock\" module=\"containerd/grpc\" ",
"time=\"2018-02-18T01:25:18-05:00\" level=info msg=\"containerd successfully booted in 0.002771s\" module=containerd ",
"time=\"2018-02-18T01:25:18.775686433-05:00\" level=info msg=\"[graphdriver] using prior storage driver: overlay2\"",
"time=\"2018-02-18T01:25:18.780002053-05:00\" level=info msg=\"Graph migration to content-addressability took 0.00 seconds\"",
"time=\"2018-02-18T01:25:18.780501640-05:00\" level=info msg=\"Loading containers: start.\"",
"time=\"2018-02-18T01:25:18.840608687-05:00\" level=info msg=\"Default bridge (docker0) is assigned with an IP address 172.17.0.0/16. Daemon option --bip can be used to set a preferred IP address\"",
"time=\"2018-02-18T01:25:18.859447845-05:00\" level=info msg=\"Loading containers: done.\"",
"time=\"2018-02-18T01:25:18.863941249-05:00\" level=info msg=\"Docker daemon\" commit=c97c6d6 graphdriver(s)=overlay2 version=17.12.0-ce",
"time=\"2018-02-18T01:25:18.863990869-05:00\" level=info msg=\"Daemon has completed initialization\"",
"time=\"2018-02-18T01:25:18.877109649-05:00\" level=info msg=\"API listen on /var/run/docker.sock\""
],
"stdout": "",
"stdout_lines": []
}
}
PLAY RECAP *********************************************************************************************************************************************************************
node0 : ok=10 changed=5 unreachable=0 failed=0