我有 2 个 docker 映像，一个 modbus 服务器和一个客户端，我手动运行它们，docker run --network host server并且与客户端相同并且可以完美运行。但是现在我需要将它们添加到网络是桥接的 docker-compose 文件中，我这样做是这样的：
autoserver:
image: 19mikel95/pymodmikel:autoserversynchub
container_name: autoserver
restart: unless-stopped
clientperf:
image: 19mikel95/pymodmikel:reloadcomp
container_name: clientperf
restart: unless-stopped
depends_on:
- autoserver
links:
- "autoserver:server"
我读到从一个容器引用另一个容器（客户端到服务器）我必须使用 dockercompose YML（自动服务器）中的服务名称，这就是我所做的。在客户端执行的 python 文件中（这是来自 pymodbus 的 performance.py），我将 'localhost' 更改为：
host = 'autoserver'
client = ModbusTcpClient(host, port=5020)
但是我收到此错误：
[ERROR/MainProcess] 未能成功运行测试 Traceback（最近一次调用最后一次）：文件“performance.py”，第 72 行，在 single_client_test client.read_holding_registers(10, 1, unit=1) 文件“/usr/lib/python3 /dist-packages/pymodbus/client/common.py”，第 114 行，在 read_holding_registers 返回 self.execute(request) 文件“/usr/lib/python3/dist-packages/pymodbus/client/sync.py”，第 107 行, 在执行 raise ConnectionException("Failed to connect[%s]" % ( self.str ())) pymodbus.exceptions.ConnectionException: Modbus Error: [Connection] Failed to connect[ModbusTcpClient(autoserver:5020)]
如所问，我完整的 docker-compose YML 是这样的：
version: '2.1'
networks:
monitor-net:
driver: bridge
volumes:
prometheus_data: {}
grafana_data: {}
services:
prometheus:
image: prom/prometheus:latest
container_name: prometheus
volumes:
- ./prometheus:/etc/prometheus
- prometheus_data:/prometheus
command:
- '--config.file=/etc/prometheus/prometheus.yml'
- '--storage.tsdb.path=/prometheus'
- '--web.console.libraries=/etc/prometheus/console_libraries'
- '--web.console.templates=/etc/prometheus/consoles'
- '--storage.tsdb.retention.time=200h'
- '--web.enable-lifecycle'
restart: unless-stopped
expose:
- 9090
networks:
- monitor-net
labels:
org.label-schema.group: "monitoring"
alertmanager:
image: prom/alertmanager:latest
container_name: alertmanager
volumes:
- ./alertmanager:/etc/alertmanager
command:
- '--config.file=/etc/alertmanager/config.yml'
- '--storage.path=/alertmanager'
restart: unless-stopped
expose:
- 9093
networks:
- monitor-net
labels:
org.label-schema.group: "monitoring"
nodeexporter:
image: prom/node-exporter:latest
container_name: nodeexporter
volumes:
- /proc:/host/proc:ro
- /sys:/host/sys:ro
- c:\:/rootfs:ro
command:
- '--path.procfs=/host/proc'
- '--path.rootfs=/rootfs'
- '--path.sysfs=/host/sys'
- '--collector.filesystem.ignored-mount-points=^/(sys|proc|dev|host|etc)($$|/)'
restart: unless-stopped
expose:
- 9100
networks:
- monitor-net
labels:
org.label-schema.group: "monitoring"
cadvisor:
image: gcr.io/google-containers/cadvisor:latest
container_name: cadvisor
volumes:
- c:\:/rootfs:ro
- /var/run:/var/run:rw
- /sys:/sys:ro
- /var/lib/docker:/var/lib/docker:ro
#- /cgroup:/cgroup:ro #doesn't work on MacOS only for Linux
restart: unless-stopped
expose:
- 8080
networks:
- monitor-net
labels:
org.label-schema.group: "monitoring"
grafana:
image: grafana/grafana:latest
container_name: grafana
volumes:
- grafana_data:/var/lib/grafana
- ./grafana/provisioning:/etc/grafana/provisioning
environment:
- GF_SECURITY_ADMIN_USER=${ADMIN_USER:-admin}
- GF_SECURITY_ADMIN_PASSWORD=${ADMIN_PASSWORD:-admin}
- GF_USERS_ALLOW_SIGN_UP=false
restart: unless-stopped
expose:
- 3000
networks:
- monitor-net
labels:
org.label-schema.group: "monitoring"
pushgateway:
image: prom/pushgateway:latest
container_name: pushgateway
restart: unless-stopped
expose:
- 9091
networks:
- monitor-net
labels:
org.label-schema.group: "monitoring"
caddy:
image: stefanprodan/caddy
container_name: caddy
ports:
- "3000:3000"
- "9090:9090"
- "9093:9093"
- "9091:9091"
volumes:
- ./caddy:/etc/caddy
environment:
- ADMIN_USER=${ADMIN_USER:-admin}
- ADMIN_PASSWORD=${ADMIN_PASSWORD:-admin}
restart: unless-stopped
networks:
- monitor-net
labels:
org.label-schema.group: "monitoring"
autoserver:
image: 19mikel95/pymodmikel:autoserversynchub
container_name: autoserver
ports:
- "5020:5020"
restart: unless-stopped
networks:
- monitor-net
clientperf:
image: 19mikel95/pymodmikel:reloadcomp
container_name: clientperf
restart: unless-stopped
networks:
- monitor-net
depends_on:
- autoserver
links:
- "autoserver:server"