Claude
89086c4163
Composite actions substitute ${{ inputs.* }} directly into the run:
script source before execution, and the runner echoes that resolved
script at the top of the step log. Interpolating private_key and
transfers straight into the heredocs meant the raw SSH private key
was printed in plaintext on every run. Move both through env: and
reference them as shell variables instead, matching ssh-checkout and
ssh-command.
75 lines
2.4 KiB
YAML
75 lines
2.4 KiB
YAML
name: 'SSH Upload'
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description: 'Upload files via SCP, automatically creating destination directories.'
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author: 'MegaMiley Studio'
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inputs:
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host:
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description: 'SSH Host IP or Domain'
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required: true
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port:
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description: 'SSH Port (default: 22)'
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required: false
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default: '22'
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username:
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description: 'SSH Username'
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required: true
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private_key:
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description: 'SSH Private Key'
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required: true
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transfers:
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description: 'List of transfers formatted as "source_file(s) | remote_destination". One per line.'
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required: true
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runs:
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using: 'composite'
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steps:
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- name: Execute SSH/SCP Transfers
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shell: bash
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env:
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PRIVATE_KEY: ${{ inputs.private_key }}
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TRANSFERS: ${{ inputs.transfers }}
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HOST: ${{ inputs.host }}
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PORT: ${{ inputs.port }}
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USERNAME: ${{ inputs.username }}
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run: |
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# 1. Create a secure temporary file for the SSH key
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SSH_KEY_PATH=$(mktemp)
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printf '%s\n' "$PRIVATE_KEY" > "$SSH_KEY_PATH"
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chmod 600 "$SSH_KEY_PATH"
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# 2. Add Host to known_hosts to prevent verification prompts
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mkdir -p ~/.ssh
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ssh-keyscan -p "$PORT" -H "$HOST" >> ~/.ssh/known_hosts 2>/dev/null
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# 3. Securely write transfers input to a file for parsing
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printf '%s\n' "$TRANSFERS" > transfers.txt
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# 4. Loop through each line and execute commands
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while IFS= read -r line || [ -n "$line" ]; do
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# Skip empty lines
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[[ -z "$(echo "$line" | tr -d '[:space:]')" ]] && continue
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# Parse using the pipe | delimiter
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IFS='|' read -r src dest <<< "$line"
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# Trim leading and trailing whitespace
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src=$(echo "$src" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')
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dest=$(echo "$dest" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')
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if [ -n "$src" ] && [ -n "$dest" ]; then
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echo "::group::Transfer to $dest"
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echo "Creating remote directory: $dest"
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ssh -i "$SSH_KEY_PATH" -p "$PORT" "$USERNAME@$HOST" "mkdir -p \"$dest\"" < /dev/null
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echo "Copying $src to $dest..."
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# Note: eval is used so wildcards or multiple space-separated files expand properly
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eval "scp -r -i \"$SSH_KEY_PATH\" -P $PORT $src \"$USERNAME@$HOST:$dest/\"" < /dev/null
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echo "::endgroup::"
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fi
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done < transfers.txt
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# 5. Cleanup
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rm -f "$SSH_KEY_PATH" transfers.txt
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