Droneci Server and agent install

[TOC]

# droneci
本次是使用 **docker run** 或 **docker-compose** 安装
整体架构如下，**droneci Server** 与 **agent** 都做了 **HA**
没有将 **droneci** 移到 **k8s** 中，原因 **agent** 实例对宿主机的资源使用影响太大，需要单独使用，如果移植到 **k8s** 中将要为其创建独立的节点使用，**架构更加复杂**。

## droneci nginx

```
upstream drone_servers {
    ip_hash;
    server 127.0.0.1:8480;
    server 10.3.100.31:8480;
 }
server {
    listen 80;
    server_name drone.xxx.com;
    error_log /data/logs/nginx/drone.xxx.com/error.log;
    access_log /data/logs/nginx/drone.xxx.com/access.log;

location / {
      proxy_pass http://drone_servers;
      proxy_set_header Host $host;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-Proto $scheme;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}

```

## droneci server
> 默认情况下,drone使用`sqlite`，首选`postgres`、次之`mysql`，mysql有字符集问题
[Server官方配置](https://docs.drone.io/server/reference/)

```
#!/bin/bash

docker run \
  --volume=/var/run/docker.sock:/var/run/docker.sock \
  --volume=`pwd`/data/drone:/data \
  --volume=/usr/share/zoneinfo/Asia/Shanghai:/etc/localtime \
  --env=DRONE_DATABASE_DRIVER=postgres \
  --env=DRONE_DATABASE_DATASOURCE=postgres://drone:drone123@postgre.xxx.com:5432/drone?sslmode=disable \
  --env=DRONE_AGENTS_ENABLED=true \
  --env=DRONE_RPC_SECRET=xxxxxxxxxxb5b377674432e1f95bd0d7 \
  --env=DRONE_USER_CREATE=username:sanger,admin:true \
  --env=DRONE_SERVER_HOST="drone.xxx.com" \
  --env=DRONE_SERVER_PROTO=http \
  --env=DRONE_RUNNER_CAPACITY=2 \
  --env=DRONE_TLS_AUTOCERT=false \
  --env=DRONE_LOGS_DEBUG=true \
  --env=DRONE_LOGS_TRACE=true \
  --env=DRONE_LOGS_COLOR=true \
  --env=DRONE_GOGS_SERVER="http://gogs.xxx.com" \
  --env=DRONE_GIT_ALWAYS_AUTH=false \
  --env=DRONE_GOGS_SKIP_VERIFY=false \
  --publish=8480:80 \
  --publish=8443:443 \
  --restart=always \
  --detach=true \
  --name=drone-server \
  sanger/drone:1

```

## postgres

```
version: "3.5"
services:
  db:
    restart: always
    image: postgres:9.6
    privileged: true
    ports:
      - 5432:5432
    environment:
      POSTGRES_PASSWORD: postgres12345
      PGDATA: /var/lib/postgresql/data/pgdata
    volumes:
      - /home/drone/postgresql/data:/var/lib/postgresql/data/pgdata
  adminer:
      image: adminer
      restart: always
      ports:
        - 8080:8080
```

## droneci agent
```
version: '3.5'

services:
  drone-agents:
    image: sanger/drone-agent:with_tzdata
    ports:
      - 3003:3000
    restart: always
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /usr/share/zoneinfo/Asia/Shanghai:/etc/localtime
    environment:
      - DRONE_RPC_PROTO=http
      - DRONE_RPC_HOST=drone.xxx.com
      - DRONE_RPC_SECRET=63808e76xxxxxxxxxx4432e1f95bd0d7
      - DRONE_RUNNER_CAPACITY=5
      - DRONE_RUNNER_NAME=${HOSTNAME}
      - DOCKER_API_VERSION=1.22
      - DRONE_DEBUG=true
      - DRONE_TRACE=true
      - DRONE_RUNNER_PRIVILEGED_IMAGES=reg.xxx.com/library/centos,reg.xxx.com/drone/drone-deploy-go,reg.xxx.com/drone/drone-deploy,reg.xxx.com/drone/drone-deploy-go-test
      - DRONE_RUNNER_LABELS=env:dev
      - DRONE_AMAZON_SUBNET_ID=drone-agent
```

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