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NB: As an example, the machines are defined in file inventory.yaml with the following content: # VMs all: hosts: vm01: vm02: vm03: vm04: vm05: vm06: # Groups dev: hosts: vm01: vm02: test: hosts: vm03: vm04: prod: hosts: vm05: vm06: # Parent Groups lan: children: dev: test: wan: children: prod: ⚠ If you did not name your inventory file inventory.yaml at root folder, you’ll need to add the argument -i <inventory_filename> to all the commands in the following post....

Change mode/rights of Windows files in WSL Symptoms: By default, if you try to chmod your files hosted on windows in WSL, it won’t change anything e.g. ls -l /mnt/c/userid/.ssh/vault_pass.txt -rwxrwxrwx 1 userid userid 34 Nov 22 14:21 /mnt/c/userid/.ssh/vault_pass.txt chmod 400 /mnt/c/userid/.ssh/vault_pass.txt ls -l /mnt/c/userid/.ssh/vault_pass.txt -rwxrwxrwx 1 userid userid 34 Nov 22 14:21 /mnt/c/userid/.ssh/vault_pass.txt It can be particularly painful for keys since they cannot be too permissive e.g. for a ssh key...

Generate key ssh-keygen -t ed25519 -C "your_email@example.com" Copy key to server ssh-copy-id -i .ssh/id_ed25519.pub <server_name> Connect to server ssh -i ~/.ssh/id_ed25519 <user>@<server_name> Avoid retyping passphrase on each new connection eval $(ssh-agent -s) ssh-add /mnt/c/Users/f.tith/.ssh/id_ed25519 It is only valid in one session. On terminal kill, you’ll need to rerun those commands. Sources https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent#generating-a-new-ssh-key

This page describe the usual git commands I used on daily, weekly or monthly basis. Daily push git add -u git commit -m "<changes description>" git push [<remote>] [<branch>] e.g. git add -u git commit -m "add feature" git push origin main Update feature branch from base branch Scenario: you are working on your feature branch ‘dev’ and made a Pull Request targeting ‘main’ as base. Unfortunately, someone pushed changes on the base branch ‘main’ and your feature branch ‘dev’ is “Out-Of-Date”....

Useful commands List deployed docker compose project docker compose ls Cleanup containers and volumes docker compose down -v Copy from one volume to another cp -rp /var/lib/docker/volumes/ftith_opensearch-data1/_data/ /var/lib/docker/volumes/opensearch_opensearch-data1/ YAML anchor and aliases Simple x-common_env: &common_env env_file: - db.env services: db: <<: *common_env image: postgres:16.3 frontend: <<: *common_env image: nginx:1.27.0-bookworm Common anchors with multiple docker compose files Due to this bug: https://github.com/docker/compose/issues/5621, you’ll need a workaround to fix this issue. Given those 2 files:...