timurmozart / replicated_log

Prerequisites

• Docker and docker-compose installed
• ports 8000-8003 are free
• jq installed (not mandatory, just to prettify the curl response)

Build containers:

• cd replicated_log
• docker-compose build

Run container

• docker-compose up -d

Check the status

• docker-compose ps

Output example:

            Name                    Command         State            Ports          
------------------------------------------------------------------------------------
replicated_log_master_1        python -m app.main   Up      127.0.0.1:8000->8000/tcp
replicated_log_secondary-1_1   python -m app.main   Up      127.0.0.1:8001->8000/tcp
replicated_log_secondary-2_1   python -m app.main   Up      127.0.0.1:8002->8000/tcp
replicated_log_secondary-3_1   python -m app.main   Up      127.0.0.1:8003->8000/tcp

Use the Swagger ui

Post a message:

• Open in browser the following link: http://127.0.0.1:8000/docs#/default/append_msg_append_msg_post
• Click on the 'Try it out' button
• insert in the body section the following body:

{
    "message" : "some message text"
}

Get messages from a master node:

http://127.0.0.1:8000/docs#/default/list_msg_list_msg_get

To get the list of messages from secondary nodes, just use the curl from above but replace the port with one of 8001-8003

Use a terminal

Post a message:

curl --request POST 'http://0.0.0.0:8000/append_msg' --data-raw '{"message": "some text of the message"}' | jq '.'

Output example:

  {
    "message": "some text of the message", 
    "created_at": "2020-11-11 17:06:19.117630" 
  }

Get messages from a master node

curl --location --request GET 'http://0.0.0.0:8000/list_msg' | jq '.' Output example:

[
  {
    "message": "some text of the message", 
    "created_at": "2020-11-11 17:06:19.117630" 
  }
]

To get the list of messages from secondary nodes, just use the curl from above but replace the port with one of 8001-8003

To stop and remove containers

docker-compose stop && docker-compose rm -f