运维|devops|jenkins构建分支选择及执行日志展示

#!/bin/bash
app_name="app"
app_pattern="${app_name}-*.jar"
port=8081
temp_path=/usr/local/temp
deploy_path=/usr/local
JAVA_HOME=/usr/local/jdk-21.0.11
log_path=/data/log
log_file=${log_path}/app.log
deploy_log=${log_path}/deploy-app-$(date +%Y%m%d_%H%M%S).log

mkdir -p "${log_path}"

# 定义日志函数：同时输出到控制台和日志文件（带时间戳）
log() {
    echo "$(date '+%Y-%m-%d %H:%M:%S') $*" | tee -a "${deploy_log}"
}

log "=====部署开始 ${app_name}====="

# 等待Jar包上传完成，最多10s
new_jar=""
for ((i=0;i<10;i++)); do
    new_jar=$(find "${temp_path}" -maxdepth 1 -name "${app_pattern}" | head -1)
    [ -f "${new_jar}" ] && break
    log "等待Jar包上传 $i/10"
    sleep 1
done
[ ! -f "${new_jar}" ] && log "错误：未找到Jar包" && exit 1

jar_name=$(basename "${new_jar}")
target_jar="${deploy_path}/${jar_name}"
log "待部署包：${new_jar}"

# 停止旧进程并等待进程消亡
run_pid=$(ps -ef | grep "java -jar" | grep "${app_name}" | grep -v grep | awk '{print $2}')
if [ -n "${run_pid}" ]; then
    log "终止旧进程 ${run_pid}"
    kill -15 "${run_pid}"
    for ((i=0;i<8;i++)); do
        ! ps -p "${run_pid}" >/dev/null && break
        log "等待旧进程退出..."
        sleep 2
    done
    if ps -p "${run_pid}" >/dev/null; then
        log "超时，强制杀死 ${run_pid}"
        kill -9 "${run_pid}"
        sleep 2
    fi
fi

# 端口兜底释放
while lsof -t -i:"${port}" >/dev/null; do
    log "端口${port}占用，等待释放"
    sleep 2
done

# 更新jar
rm -f "${deploy_path}/${app_pattern}"
mv "${new_jar}" "${target_jar}"

# 启动服务
log "启动应用 port:${port}"
nohup ${JAVA_HOME}/bin/java -jar \
-Dserver.port=${port} \
-Xmx512m -Xms256m \
"${target_jar}" >> "${log_file}" 2>&1 &
new_pid=$!
log "新进程PID: ${new_pid}"

sleep 3
if ! ps -p "${new_pid}" >/dev/null; then
    log "警告：进程启动异常，请查看日志 ${log_file}"
fi

rm -rf "${temp_path:?}"/*
log "=====部署完成====="
exit 0

#!/bin/bash
# 等待5秒，让服务完成启动输出日志
sleep 5
# 查看最后300行日志，自行调整行数
tail -n 300 /data/log/app.log