megamileyandClaude Opus 5.5
95bd004534
Multi-line secrets aren't masked by the runner, so a raw PEM key passed as private_key ends up in plain text in the step's env block in the log. Accept a single-line base64-encoded key instead, which is masked like any other secret. Raw PEM keys still work for backwards compatibility. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
62 lines
2.2 KiB
YAML
62 lines
2.2 KiB
YAML
name: 'Gitea SSH Command'
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description: 'Executes a shell command/script on a remote server via SSH on a custom port.'
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inputs:
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private_key:
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description: 'Private SSH Key, base64-encoded on a single line (e.g. `base64 -w0 id_ed25519`). A raw PEM key still works but is not masked in the logs.'
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required: true
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command:
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description: 'Shell command or multi-line script to run on the remote server'
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required: true
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host:
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description: 'Remote server hostname or IP'
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required: true
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username:
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description: 'SSH username'
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required: true
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port:
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description: 'SSH port'
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required: false
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default: '22'
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runs:
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using: "composite"
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steps:
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- name: Run SSH Command
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shell: bash # Required for composite actions
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env:
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SSH_KEY: ${{ inputs.private_key }}
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COMMAND: ${{ inputs.command }}
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HOST: ${{ inputs.host }}
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USERNAME: ${{ inputs.username }}
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PORT: ${{ inputs.port }}
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run: |
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set -euo pipefail
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# 1. Setup the SSH directory and private key
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mkdir -p ~/.ssh
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chmod 700 ~/.ssh
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# The key is expected base64-encoded so it's a single-line secret the runner can mask;
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# raw multi-line PEM keys are still accepted for backwards compatibility.
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case "$SSH_KEY" in
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*"-----BEGIN"*) echo "$SSH_KEY" > ~/.ssh/ssh_command_key ;;
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*) printf '%s' "$SSH_KEY" | tr -d '[:space:]' | base64 -d > ~/.ssh/ssh_command_key ;;
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esac
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chmod 600 ~/.ssh/ssh_command_key
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# 2. Configure SSH for the custom port/user and bypass host key prompt
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cat >> ~/.ssh/config <<EOF
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Host $HOST
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Port $PORT
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User $USERNAME
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IdentityFile ~/.ssh/ssh_command_key
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StrictHostKeyChecking no
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EOF
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# 3. Run the command on the remote host, piped over stdin so multi-line
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# scripts and embedded quotes don't need any local shell-escaping.
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# Remote stdout/stderr stream straight into this step's log, and the
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# remote command's exit code becomes this step's exit code.
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echo "Running command on $HOST..."
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printf '%s\n' "$COMMAND" | ssh "$HOST" bash -s
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