Merge pull request #1689 from mathbunnyru/asalikhov/ubuntu_jammy

Switch to ubuntu:22.04

.readthedocs.yaml

@@ -8,7 +8,7 @@ version: 2
 
 # Set the version of Python and other tools you might need
 build:
-  os: ubuntu-20.04
+  os: ubuntu-22.04
   tools:
     python: "3.9"
     # You can also specify other tool versions:

base-notebook/Dockerfile

@@ -1,9 +1,9 @@
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
-# Ubuntu 20.04 (focal)
-# https://hub.docker.com/_/ubuntu/?tab=tags&name=focal
-ARG ROOT_CONTAINER=ubuntu:focal
+# Ubuntu 22.04 (jammy)
+# https://hub.docker.com/_/ubuntu/?tab=tags&name=jammy
+ARG ROOT_CONTAINER=ubuntu:22.04
 
 FROM $ROOT_CONTAINER
 

docs/maintaining/tasks.md

@@ -18,8 +18,9 @@ To build new images and publish them to the Docker Hub registry, do the followin
 
 ## Updating the Ubuntu Base Image
 
-`minimal-notebook` is based on the Latest LTS Ubuntu docker image.
-Other images are directly or indirectly inherited from `minimal-notebook`.
+`base-notebook` is based on the LTS Ubuntu docker image.
+We wait for the first point release of the new LTS Ubuntu before updating the version.
+Other images are directly or indirectly inherited from `base-notebook`.
 We rebuild our images automatically each week, which means they frequently receive the updates.
 
 When there's a security fix in the Ubuntu base image, it's a good idea to manually trigger images rebuild [from the GitHub actions workflow UI](https://github.com/jupyter/docker-stacks/actions/workflows/docker.yml).

docs/using/recipes.md

@@ -233,14 +233,15 @@ RUN rm /etc/dpkg/dpkg.cfg.d/excludes && \
 USER ${NB_UID}
 ```
 
-Adding the documentation on top of the existing single-user image wastes a lot of space and requires
-reinstalling every system package. Which can take additional time and bandwidth; the
-`datascience-notebook` image has been shown to grow by almost 3GB when adding manpages in this way.
+Adding the documentation on top of the existing single-user image wastes a lot of space
+and requires reinstalling every system package,
+which can take additional time and bandwidth.
+The `datascience-notebook` image has been shown to grow by almost 3GB when adding manpages in this way.
 Enabling manpages in the base Ubuntu layer prevents this container bloat.
-To achieve this, use the previous `Dockerfile` with the original ubuntu image (`ubuntu:focal`) as your base container:
+To achieve this, use the previous `Dockerfile`'s commands with the original `ubuntu` image as your base container:
 
 ```dockerfile
-ARG BASE_CONTAINER=ubuntu:focal
+ARG BASE_CONTAINER=ubuntu:22.04
 ```
 
 For Ubuntu 18.04 (bionic) and earlier, you may also require to a workaround for a mandb bug, which was fixed in mandb >= 2.8.6.1:

examples/docker-compose/bin/letsencrypt.sh

@@ -43,6 +43,6 @@ docker run -it --rm \
 # directory so that the FQDN doesn't have to be known later.
 docker run -it --rm \
     -v "${SECRETS_VOLUME}":/etc/letsencrypt \
-    ubuntu:20.04 \
+    ubuntu:22.04 \
     bash -c "ln -s /etc/letsencrypt/live/${FQDN}/* /etc/letsencrypt/ && \
         find /etc/letsencrypt -type d -exec chmod 755 {} +"

tagging/README.md

@@ -29,7 +29,7 @@ In this section we will briefly describe source code in this folder and give exa
 ```python
 from tagging.docker_runner import DockerRunner
 
-with DockerRunner("ubuntu:bionic") as container:
+with DockerRunner("ubuntu:22.04") as container:
     DockerRunner.run_simple_command(container, cmd="env", print_result=True)
 ```