Errata

The steps detailing the cycle of getting an application to production. Specifically step 7 states: "Loop over steps 5 and 6 n more times". Yet the diagram in Figure 2-1 loops from steps 4 - 6. Depending on the correct process either the step or the diagram should be updated to match each other.

Note from the Author or Editor:
Confirmed. Committing fix.

Repo "rocketchat-hubot-demo"
volumes:
- mongodb-rocketchat:/bitnami/mongodb

[ERROR]
docker compose up -d
[+] Running 0/0
⠋ Network compose_botnet Created 0.1s
external volume "mongodb-rocketchat" not found

The volume mongodb-rocketchat must be created firstly.

The book creates a container using `docker container create -p 6379:6379 redis:2.8`. However, the command's output indicates `redis:7.0` was downloaded.

The command `docker container ls -a --filter ancestor=redis:2.8` lists all containers that share a given image (redis:2.8). However, the output of the command shows `redis:7.0` instead.

The note explains most docker commands will work using the full hash of the container (092c5dc850446324e…a37299d35fc67a042) or even just enough of the hash to make it unique. It finalizes the note saying that the command `docker container start 6b7` would have just worked fine. However, the command would not work as "6b7" is not found anywhere in the container's hash.

The text "Unlike stopping a container, where the processes are made aware that they are stopping via the SIGSTOP signal" should be "Unlike stopping a container, where the processes are made aware that they are stopping via the SIGTERM signal".