Deployment with docker-compose to Azure using CLI gives timeout when visiting agent page

Question

I have docker-compose file:

version: "3"
services:
  app2:
    image: kamilwit/dockerdocker_app2
    container_name: app2
    build:
      context: ./app2
    volumes:
      - app2data:/data
    environment:
      - LOGGING_LOG-FILES-PATH=/opt/tomcat/logs
    ports:
      - "8000:8080"
  app:
    image: kamilwit/dockerdocker_app
    container_name: app
    build:
      context: ./app
    volumes:
      - app1data:/data
    environment:
      - LOGGING_LOG-FILES-PATH=/opt/tomcat/logs
    ports:
      - "8001:8080"
volumes:
  app1data:
  app2data:

I followed the instructions from https://docs.microsoft.com/en-us/azure/container-service/dcos-swarm/container-service-swarm-walkthrough

To be exact I executed the following commands:

az group create --name myResourceGroup --location westus

az acs create --name mySwarmCluster --orchestrator-type Swarm --resource-group myResourceGroup --generate-ssh-keys --agent-count 1

then I got the output from

az network public-ip list --resource-group myResourceGroup --query "[*].{Name:name,IPAddress:ipAddress}" -o table

Name                                                            IPAddress
--------------------------------------------------------------  --------------
swarm-agent-ip-myswarmclu-myresourcegroup-76f1d9agent-EEACED89  104.42.144.82
swarm-master-ip-myswarmclu-myresourcegroup-76f1d9mgmt-EEACED89  104.42.255.141

I connect to ssh with: ssh -p 2200 -fNL 2375:localhost:2375 azureuser@104.42.255.141 i use:

export DOCKER_HOST=:2375

then I started my docker-compose file: docker-compose up -d

The output of docker ps is:

docker ps
CONTAINER ID        IMAGE                        COMMAND                  CREATED             STATUS              PORTS                     NAMES
3bfff4427e44        kamilwit/dockerdocker_app    "/bin/sh /data/app..."   18 minutes ago      Up 8 minutes        10.0.0.5:8001->8080/tcp   swarm-agent-EEACED89000001/app
c297ea34547e        kamilwit/dockerdocker_app2   "/bin/sh /data/app..."   18 minutes ago      Up 8 minutes        10.0.0.5:8000->8080/tcp   swarm-agent-EEACED89000001/app2

However I am unable to connect to my site by ip from agent in the example above I tried going to 104.42.144.82:8000 and 104.42.144.82:8001/#!/registration or even 10.0.0.5:8000

I get a time out. When i run this dockerfile locally, I connect like that to my sites: localhost:8000 and localhost:8001/#!/registration

Tried on

az --version
azure-cli (2.0.32)

I tried opening ports in Azure:

https://imgur.com/cjslLMN

https://imgur.com/nSAQdLS

But that did not help. I tried also opening the site from mobile phone (another network on it) did not help.

Edit:

using docker-compose:

version: "3"
services:
  app2:
    image: kamilwit/dockerdocker_app2
    container_name: app2
    build:
      context: ./app2
    volumes:
      - app2data:/data
    environment:
      - LOGGING_LOG-FILES-PATH=/opt/tomcat/logs
    ports:
      - "80:8080"
  app:
    image: kamilwit/dockerdocker_app
    container_name: app
    build:
      context: ./app
    volumes:
      - app1data:/data
    environment:
      - LOGGING_LOG-FILES-PATH=/opt/tomcat/logs
    ports:
      - "8001:8080"
volumes:
  app1data:
  app2data:

and following the same steps from the question I can access first site on port 80, but i can not access site on port 8001. If i changed port from 8001 to 80, and leave 8000 - then i can access to the site on port 80 but no on the site on port 8000.

Answer 1

First, check if your docker image works in azure, and you can open web page from swarm master server.

ssh -p 2200 azureuser@104.42.255.141 # Connect via ssh to your swarm master
sudo apt-get install lynx # Install lynx - console web browser 
docker ps # check IP address of app
lynx 10.0.0.5:8000 # Open your app in lynx (using private IP address)

If page doesn't load then there is a problem with the image or your app didn't start properly. If page loads, it means there is a problem with network infrastructure. Probably there is missing rules in load balancer for swarm agent. By default, there are open ports at 80, 443 and 8080. Just add new rule for 8000, and wait a moment.