81 lines
2.3 KiB
Bash
81 lines
2.3 KiB
Bash
#!/usr/bin/env bash
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set -euo pipefail
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usage() {
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cat >&2 <<'EOF'
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用法:
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jenkins-inbound-agent-start <agent-name>
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说明:
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该脚本由 systemd 调用，读取 /etc/jenkins-agent/<agent-name>.env，
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下载 Jenkins agent.jar，并通过 inbound WebSocket 连接 Jenkins controller。
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EOF
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}
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AGENT_INSTANCE="${1:-}"
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if [[ -z "${AGENT_INSTANCE}" ]]; then
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usage
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exit 2
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fi
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CONFIG_FILE="${JENKINS_AGENT_CONFIG_FILE:-/etc/jenkins-agent/${AGENT_INSTANCE}.env}"
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if [[ ! -r "${CONFIG_FILE}" ]]; then
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echo "[jenkins-agent] 配置文件不可读: ${CONFIG_FILE}" >&2
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exit 1
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fi
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set -a
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# shellcheck disable=SC1090
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source "${CONFIG_FILE}"
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set +a
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JENKINS_AGENT_NAME="${JENKINS_AGENT_NAME:-${AGENT_INSTANCE}}"
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JENKINS_AGENT_WORKDIR="${JENKINS_AGENT_WORKDIR:-/var/lib/jenkins/agent/${JENKINS_AGENT_NAME}}"
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JENKINS_AGENT_JAR="${JENKINS_AGENT_JAR:-/opt/jenkins-agent/agent.jar}"
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JENKINS_AGENT_SECRET_FILE="${JENKINS_AGENT_SECRET_FILE:-/etc/jenkins-agent/${JENKINS_AGENT_NAME}.secret}"
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JENKINS_AGENT_USE_WEBSOCKET="${JENKINS_AGENT_USE_WEBSOCKET:-true}"
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JENKINS_AGENT_JAVA_BIN="${JENKINS_AGENT_JAVA_BIN:-java}"
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if [[ -z "${JENKINS_URL:-}" ]]; then
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echo "[jenkins-agent] JENKINS_URL 不能为空。" >&2
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exit 1
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fi
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if [[ -z "${JENKINS_AGENT_SECRET:-}" ]]; then
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if [[ ! -r "${JENKINS_AGENT_SECRET_FILE}" ]]; then
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echo "[jenkins-agent] 未提供 JENKINS_AGENT_SECRET，且密钥文件不可读: ${JENKINS_AGENT_SECRET_FILE}" >&2
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exit 1
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fi
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JENKINS_AGENT_SECRET="$(tr -d '\r\n' <"${JENKINS_AGENT_SECRET_FILE}")"
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fi
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if [[ -z "${JENKINS_AGENT_SECRET}" ]]; then
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echo "[jenkins-agent] Jenkins inbound agent secret 不能为空。" >&2
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exit 1
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fi
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mkdir -p "$(dirname "${JENKINS_AGENT_JAR}")" "${JENKINS_AGENT_WORKDIR}"
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AGENT_JAR_URL="${JENKINS_URL%/}/jnlpJars/agent.jar"
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AGENT_JAR_TMP="${JENKINS_AGENT_JAR}.tmp"
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echo "[jenkins-agent] 下载 agent.jar: ${AGENT_JAR_URL}"
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curl -fsSL --retry 5 --retry-delay 5 "${AGENT_JAR_URL}" -o "${AGENT_JAR_TMP}"
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mv "${AGENT_JAR_TMP}" "${JENKINS_AGENT_JAR}"
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agent_args=(
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"${JENKINS_AGENT_JAVA_BIN}"
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-jar "${JENKINS_AGENT_JAR}"
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-url "${JENKINS_URL}"
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-secret "${JENKINS_AGENT_SECRET}"
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-name "${JENKINS_AGENT_NAME}"
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-workDir "${JENKINS_AGENT_WORKDIR}"
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)
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if [[ "${JENKINS_AGENT_USE_WEBSOCKET}" == "true" ]]; then
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agent_args+=(-webSocket)
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fi
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echo "[jenkins-agent] 启动 inbound agent: ${JENKINS_AGENT_NAME}"
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exec "${agent_args[@]}"
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