On page 6 [Figure captions interchanged]:
On page 6 and page 7, the captions for Figure 1-1 and Figure 1-2 are interchanged. The caption for Figure 1-1 should read Representation of three apps running on three different virtual machines and the caption for Figure 1-2 should read Representation of three apps running on three different containers.
On page 27 [Extra word on the sentence about inter-daemon communication]:
On page 27, in the chapter paragraph about Docker daemon, the example sentence mentions Some examples of inter-daemon communication include communication Datadog for container metrics monitoring and Aqua for container security monitoring. This should actually read Some examples of inter-daemon communication include Datadog for container metrics monitoring and Aqua for container security monitoring
For the Telegram chat bot exercises [Docker image has been updated]:
The exercises refer to Docker iamge to be used as FROM python:3-alpine. Due to some breaking changes in Python versions and dependencies, this causes Docker image to not build.
For this reason, the Docker images have been updated to refer to Python 3.9 image and as a result, the FROM line has been updated to FROM python:3.9-alpine in place of the existing FROM python:3-alpine.