Docker容器环境变量配置不生效

[kaolaaz163]

通过容器启动的PrometheusAlert，启动容器的配置如下：

version: '3'
services:
  prometheus-alert:
    image: feiyu563/prometheus-alert:latest
    container_name: prometheus-alert
    restart: always
    environment:
    - PA_LOGIN_USER=admin
    - PA_LOGIN_PASSWORD=xxxxxx
    - PA_TITLE=Prometheus告警
    - PA_OPEN_FEISHU=0
    - PA_OPEN_DINGDING=0
    - PA_OPEN_WEIXIN=1
    - PA_ALERTRECORD=1
    ports:
    - 8080:8080
    volumes:
    - /data/prometheus-alert/data:/app/db

容器启动后，提示open-feishu和title环境变量配置有问题，检查app.conf配置文件中的配置并没有被替换

sh: open-feishu: unknown operand
sed: unmatched '@'
sh: title: unknown operand
sed: unmatched '@'
pass!
Config overridden from Environment variable, AlertRecord=1.
Config overridden from Environment variable, open-dingding=0.
Config overridden from Environment variable, login_password=xxxxxx.
Config overridden from Environment variable, open-weixin=1.
Config overridden from Environment variable, login_user=admin.
Config overridden from Environment variable, open-feishu
open-feishu=0.
Config overridden from Environment variable, title
title=Prometheus告警.
table `prometheus_alert_d_b` already exists, skip
table `alert_record` already exists, skip
table `alert_router` already exists, skip
2024/03/15 13:48:19.881 [I] [proc.go:250]  [main] 构建的Go版本: go1.20.6
2024/03/15 13:48:19.881 [I] [proc.go:250]  [main] 应用当前版本: v4.9
2024/03/15 13:48:19.881 [I] [proc.go:250]  [main] 应用当前提交: b0cc4630afefe67353c08fd884c0f040018eb316
2024/03/15 13:48:19.881 [I] [proc.go:250]  [main] 应用构建时间: 2023-07-28T09:37:42+00:00
2024/03/15 13:48:19.881 [I] [proc.go:250]  [main] 应用构建用户: root@buildkitsandbox
2024/03/15 13:48:19.912 [I] [asm_amd64.s:1598]  http server Running on http://0.0.0.0:8080

检查docker-entrypoint.sh脚本，发现在过滤配置项的时候只要包含关键字配置项即匹配，这样是否会过滤出无关的配置项，是否可以加个"-w"：

        CONF_ITEM=$(grep -Eio "${VAR_NAME/_/-}|${VAR_NAME}" /app/conf/app.conf)