feat: upgrade docker environment to Ubuntu 22.04

CODEOWNERS

@@ -1,4 +1,4 @@
 # These owners will be the default owners for everything in
 # the repo. Unless a later match takes precedence,
 # They will be requested for review when someone opens a pull request.
-*       @kuang-da @dianehoffstetterupenn
+*       @CIS548/autograder-overlord

Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:20.04
+FROM ubuntu:22.04
 
 # Remove diverted man binary to prevent man-pages being replaced with "minimized" message.
 # https://github.com/CIS380/docker-env/wiki/Install-man-page

README.md

@@ -93,7 +93,8 @@ docker buildx inspect --bootstrap
 3. Build and push the images to `cis548/docker-env`. To push images to the Docker Hub reposiotry, make sure you have the right permissons to the repo.
 
 ```bash
-docker buildx build . --platform=linux/amd64,linux/arm64/v8 -t cis548/docker-env --push
+docker buildx build . --platform=linux/amd64,linux/arm64/v8 -t cis548/docker-env:latest --push
+# change :latest to another tag if necessary
 ```
 
 4. To learn more, the following sections in [this YouTube video](https://www.youtube.com/watch?v=hWSHtHasJUI) gives a step-by-step demo. 

docker-setup.sh

@@ -12,7 +12,7 @@ apt-get install -y gnupg
 apt-get -y upgrade
 apt-get install -y wget
 wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
-apt-add-repository "deb http://apt.llvm.org/focal/ llvm-toolchain-focal main"
+apt-add-repository "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy main"
 
 # install text editors and terminals
 add-apt-repository ppa:jonathonf/vim
@@ -27,17 +27,19 @@ apt-get install -y tmux
 apt-get install -y gdb valgrind
 
 # install C stuff
-apt-get install -y gcc clang-10 clang-format-10 make
-update-alternatives --install /usr/bin/clang clang /usr/bin/clang-10 100
-update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-10 100
+apt-get install -y gcc clang clang-format make
+
+
+# network stuff
+apt-get install -y net-tools
+apt-get install iputils-ping
+apt-get install -y traceroute
 
 # install miscellaneous things I can't categorise
 apt-get install -y lldb-3.8
 apt-get install -y git-all
 apt-get install -y curl
 apt-get install -y sudo
-apt-get install -y net-tools
-apt-get install -y traceroute
 apt-get install -y dnsutils
 apt-get install -y zip
 

test.sh

@@ -2,7 +2,7 @@
 
 echo -n "Checking dependencies... "
 
-for name in gcc clang gdb valgrind git vim make tmux ifconfig unzip tar sudo man traceroute nslookup python3
+for name in gcc clang gdb valgrind git vim make tmux ifconfig unzip tar sudo man traceroute nslookup python3 curl
 do
   [[ $(which $name 2>/dev/null) ]] || { echo -en "\n$name needs to be installed. Use 'sudo apt-get install $name'";deps=1; }
 done