我在运行docker-compose up时遇到以下错误
nginx_1 | 2018/07/03 06:54:17 [emerg] 1#1: host not found in upstream "admin:1123" in /etc/nginx/nginx.conf:19
nginx_1 | nginx: [emerg] host not found in upstream "admin:1123" in /etc/nginx/nginx.conf:19
nginx_1 exited with code 1
docker-compose.yml
version: "2"
volumes:
mongostorage:
services:
app:
build: ./app
ports:
- "3000"
links:
- mongo
- redis
volumes:
- ./app:/var/www/app
- /var/www/app/node_modules
adminmongo:
build: ./adminMongo
ports:
- "4455"
links:
- mongo
command: node app.js
admin:
build: ./admin
ports:
- "1123"
links:
- mongo
- redis
command: node admin_app.js
nginx:
build: ./nginx
ports:
- "80:80"
- "1123:1123"
- "4455:4455"
links:
- app:app
- admin:admin
mongo:
image: mongo:2.4
environment:
- MONGO_DATA_DIR=/data/db
volumes:
- mongostorage:/data/db
ports:
- "27017:27017"
redis:
image: redis
volumes:
- ./data/redis/db:/data/db
ports:
- "6379:6379"
应用的dockerfile
FROM node:9.8
RUN mkdir -p /var/www/app
WORKDIR /var/www/app
COPY . /var/www/app
RUN npm install -g gulp pm2 notify-send
RUN npm install
CMD ["pm2-docker", "./bin/www"]
管理员的dockerfile
FROM node:9.8
RUN mkdir -p /var/www/sibkladmin
WORKDIR /var/www/sibkladmin
COPY . /var/www/sibkladmin
RUN npm install -g gulp pm2 bcrypt
RUN npm install
nginx的dockerfile
FROM nginx:latest
EXPOSE 80
EXPOSE 1123
EXPOSE 4455
COPY nginx.conf /etc/nginx/nginx.conf
nginx.conf
events {
worker_connections 1024;
}
http{
upstream app.local{
least_conn;
server app:3000 weight=10 max_fails=3 fail_timeout=30s;
}
upstream app.local:4455{
least_conn;
server adminmongo:4455 weight=10 max_fails=3 fail_timeout=30s;
}
upstream app.local:1123{
least_conn;
server admin:1123 weight=10 max_fails=3 fail_timeout=30s;
}
server {
listen 80;
server_name app.local;
location / {
proxy_pass http://app.local;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
}
server {
listen 1123;
server_name app.local:1123;
location / {
proxy_pass http://app.local:1123;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
}
server {
listen 4455;
server_name app.local:4455;
location / {
proxy_pass http://sibklapp.local:4455;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
}
}
已更新：
在docker-compose构建之后收到错误
npm ERR! path /var/www/admin/node_modules/bcrypt/node_modules/abbrev
npm ERR! code ENOENT
npm ERR! errno -2
npm ERR! syscall rename
npm ERR! enoent ENOENT: no such file or directory, rename '/var/www/admin/node_modules/bcrypt/node_modules/abbrev' -> '/var/www/admin/node_modules/bcrypt/node_modules/.abbrev.DELETE'
npm ERR! enoent This is related to npm not being able to find a file.
npm ERR! enoent
npm ERR! A complete log of this run can be found in:
npm ERR! /root/.npm/_logs/2018-07-05T10_03_43_640Z-debug.log
ERROR: Service 'admin' failed to build: The command '/bin/sh -c npm install' returned a non-zero code: 254
答案 0 :(得分：2)
您可以尝试：
更改：
COPY nginx.conf /etc/nginx/nginx.conf
到
COPY nginx.conf /etc/nginx/nginx.conf.d
删除EXPOSE端口无需公开端口。
将撰写文件更新为：
version: "2"
volumes:
mongostorage:
services:
app:
build: ./app
ports:
- "3000:3000"
links:
- mongo
- redis
volumes:
- ./app:/var/www/app
- /var/www/app/node_modules
command: node app.js
adminmongo:
build: ./adminMongo
ports:
- "4455:4455"
links:
- mongo
volumes:
- ./adminMongo:/var/www/adminMongo
- /var/www/adminMongo/node_modules
command: node app.js
admin:
build: ./admin
ports:
- "1123:1123"
links:
- mongo
- redis
volumes:
- ./admin:/var/www/admin
- /var/www/admin/node_modules
command: node admin_app.js
nginx:
build: ./nginx
links:
- app:app
- admin:admin
mongo:
image: mongo:2.4
environment:
- MONGO_DATA_DIR=/data/db
volumes:
- mongostorage:/data/db
ports:
- "27017:27017"
redis:
image: redis
volumes:
- ./data/redis/db:/data/db
ports:
- "6379:6379"
注意
我创建了一个简单的节点hello world应用程序进行测试，您将需要更新command:以匹配package.json
也 在启动应用程序之前，请运行以下命令来清理所有旧的容器/网络：
docker-compose kill
docker-compose down
docker network prune
docker volume prune
要启动服务，请运行：
docker-compose build
docker-compose up --force-recreate
mongo_1 | Wed Jul 4 21:50:35.835 [initandlisten] waiting
for connections on port 27017
mongo_1 | Wed Jul 4 21:50:35.835 [websvr] admin web console
waiting for connections on port 28017
app_1 | app listening on port 3000!
admin_1 | admin app listening on port 1123!
adminmongo_1 | AdminMongo app listening on port 4455!
redis_1 | 1:M 04 Jul 21:50:26.523 * Running mode=standalone,
port=6379.
答案 1 :(得分：0)
该问题表明您没有使用node_modules在Dockerfile内安装npm install或使用COPY . /src这样的语句覆盖了主机上的那些内容。
由于您使用的模块是本机模块，因此需要在docker映像内进行编译，而不仅仅是从其他地方复制，否则除非主机操作系统版本和Image OS版本相同，否则它们将不兼容。