วันศุกร์ที่ 26 กรกฎาคม พ.ศ. 2562

[Linux Container] - Basic Linux Container Command

รวมคำสั่งที่ใช้งานบ่อยๆ

คำสั่งที่ใช้ในการติดตั้ง

bash/shell
1 2 3	`sudo` `snap` `install` `lxd` `sudo` `lxd init` `sudo` `usermod` `--append --groups` `lxd sarankon`

การจัดการเกี่ยวกับ Container

bash/shell
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43	`# Create new container` `lxc launch images:<alias-name> <container-name>` `lxc launch images:alpine/3.10 alpine` `# List the list of container` `lxc list` `# Show the info of container, *snapshot show here!` `lxc info <container-name>` `# Start and Stop container` `lxc start <container-name>` `lxc stop <container-name>` `# Delete container` `lxc delete <container-name>` `lxc delete <container-name> --force` `# Run command in container` `lxc` `exec` `<container-name> -- <command>` `# Run apt update command` `lxc` `exec` `<container-name> -- apt update` `# Use bash in container` `lxc` `exec` `<container-name> --` `bash` `# Use default editor to edit file in container` `lxc` `file` `edit <container-name>/<path/file.txt>` `# Push file to container` `lxc` `file` `push <file> <container-name>/<path>` `# Create snapshot` `lxc snapshot <container-name> <snapshot-name>` `# Restore snapshot` `lxc restore <container-name> <snapshot-name>` `# Delete snapshot` `lxc delete <container-name>/<snapshot-name>` `# Create container from snapshot` `lxc copy <container-name>/<snapshot-name> <new-container-name>` `# lxc start <container-name> // after create from snapshot`

การจัดการเกี่ยวกับ Images

bash/shell
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34	`# Show the list of remote server` `lxc remote list` `+-----------------+------------------------------------------+` `\| NAME \| URL \|` `+-----------------+------------------------------------------+` `\| images \| https://images.linuxcontainers.org \|` `+-----------------+------------------------------------------+` `\|` `local` `(default) \| unix://` `\|` `+-----------------+------------------------------------------+` `\| ubuntu \| https://cloud-images.ubuntu.com/releases` `\|` `+-----------------+------------------------------------------+` `\| ubuntu-daily \| https://cloud-images.ubuntu.com/daily` `\|` `+-----------------+------------------------------------------+` `# lxc image list <remote-name>` `# Default is local, not have to type` `lxc image list` `lxc image list` `local:` `lxc image list images:` `lxc image list images: \|` `grep` `-C1 -i centos` `lxc image copy images:<alias-name>` `local: --alias` `<alias-name>` `lxc image delete <alias-name>` `# Publish, Export and Import` `lxc publish <container-name>/<snapshot-name>` `lxc image` `export` `<alias-name> <path>` `lxc image` `import` `<tar.gz` `file> --alias` `<alias-name>` `# tar ball 'tar.gz' structure` `# metadata.yaml, rootfs, templates (hostname.tpl, hosts.tpl)`

การสร้าง Remote Host

bash/shell
1 2 3 4 5 6 7 8 9 10 11 12	`# Host 1` `lxc remote list` `# Host 2` `lxc config` `set` `core.https_address` `"[::]:8443"` `lxc config` `set` `core.trust_password <password>` `# Host 1` `lxc remote add <remote-name> <ip-address> --password=<password>` `lxc list <remote-name>` `lxc image list <remote-name:>`

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