Uly.me

cloud engineer

Run Docker Compose

Here’s how to run docker-compose. I have an Icecast docker-compose.yml file. Icecast is an audio streaming server.

version: "2"
 
services:
  icecast:
    image: moul/icecast
    environment:
      - ICECAST_SOURCE_PASSWORD=secret
      - ICECAST_ADMIN_PASSWORD=secret
      - ICECAST_PASSWORD=secret
      - ICECAST_RELAY_PASSWORD=secret
    ports:
      - "8000:8000"
    restart: always

To run Icecast in a container , I run docker-compose in the background.

docker-compose up -d

Check to see if Icecast is running on your browser.

http://localhost:8000

To stop the Icecast container, I simply stop the docker-compose.

docker-compose stop

Here are the other docker commands you can run.

docker images
docker ps
docker-compose ps

Wowza 4.8.0 Scripts

Here are the start and stop scripts for the lastest Wowza version 4.8.0.

Start scripts

sudo service WowzaStreamingEngine start
# or
/etc/init.d/WowzaStreamingEngine start

Stop scripts

sudo service WowzaStreamingEngine stop
# or
/etc/init.d/WowzaStreamingEngine stop

GCP Start Multiple Instances

Here’s how to start multiple instances using Bash and Google SDK.

#!/bin/bash
while IFS=', ' read -r a b c; do
  instance="${a//[[:blank:]]/}"
  project="${b//[[:blank:]]/}"
  zone="${c//[[:blank:]]/}"
  echo "Starting $instance ...."
  gcloud compute instances start $instance \
  --zone $zone --project $project --async
done < instance-list.txt

Instances are read from an external file. The file format is displayed below.

server1,project1,us-central1-a
server2,project2,us-central1-b
server3,project3,us-central1-c

To stop multiple instances, replace “start” with “stop.”

AWS RDS Start and Stop Policy

Here’s a IAM policy that you can add to an IAM user or an IAM role so they are able to start and stop a specific RDS instance.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Condition": {
                "StringEqualsIgnoreCase": {
                    "rds:db-tag/Application": "application-name"
                }
            },
            "Action": [
                "rds:DescribeDBInstances",
                "rds:StartDBInstance",
                "rds:StopDBInstance"
            ],
            "Resource": "arn:aws:rds:us-east-1:xxxxxxxxxxxx:db:db-instance-name",
            "Effect": "Allow"
        }
    ]
}

Docker Stop and Remove All

Here’s the command to stop and remove all Docker containers.

docker stop $(docker ps -a -q)
docker rm $(docker ps -a -q)