Add prebuilt ponyc releases for Ubuntu 22.04

Closes #4062

.ci-dockerfiles/x86-64-unknown-linux-ubuntu22.04-builder/Dockerfile

@@ -0,0 +1,28 @@
+FROM ubuntu:22.04
+
+# Keep annoying tzdata prompt from coming up
+# Thanks cmake!
+ENV DEBIAN_FRONTEND noninteractive
+ENV DEBCONF_NONINTERACTIVE_SEEN true
+
+RUN apt-get update \
+  && apt-get install -y --no-install-recommends \
+  apt-transport-https \
+  build-essential \
+  clang \
+  cmake \
+  git \
+  make \
+  xz-utils \
+  zlib1g-dev \
+  curl \
+  python3-pip \
+ && rm -rf /var/lib/apt/lists/* \
+ && apt-get -y autoremove --purge \
+ && apt-get -y clean \
+ && pip3 install cloudsmith-cli
+
+# add user pony in order to not run tests as root
+RUN useradd -ms /bin/bash -d /home/pony -g root pony
+USER pony
+WORKDIR /home/pony

.ci-dockerfiles/x86-64-unknown-linux-ubuntu22.04-builder/build-and-push.bash

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+set -o errexit
+set -o nounset
+
+#
+# *** You should already be logged in to DockerHub when you run this ***
+#
+
+NAME="ponylang/ponyc-ci-x86-64-unknown-linux-ubuntu22.04-builder"
+TODAY=$(date +%Y%m%d)
+DOCKERFILE_DIR="$(dirname "$0")"
+
+docker build --pull -t "${NAME}:${TODAY}" "${DOCKERFILE_DIR}"
+docker push "${NAME}:${TODAY}"

.cirrus.yml

@@ -282,6 +282,13 @@ task:
         CACHE_BUSTER: 20210224
         TRIPLE_VENDOR: unknown
         TRIPLE_OS: linux-ubuntu20.04
+    - name: "nightly: x86-64-unknown-linux-ubuntu22.04"
+      container:
+        image: ponylang/ponyc-ci-x86-64-unknown-linux-ubuntu22.04-builder:20220426
+      environment:
+        CACHE_BUSTER: 20220426
+        TRIPLE_VENDOR: unknown
+        TRIPLE_OS: linux-ubuntu22.04
     - name: "nightly: x86-64-unknown-linux-musl"
       container:
         image: ponylang/ponyc-ci-x86-64-unknown-linux-musl-builder:20210420
@@ -444,6 +451,13 @@ task:
         CACHE_BUSTER: 20200830
         TRIPLE_VENDOR: unknown
         TRIPLE_OS: linux-ubuntu20.04
+    - name: "nightly: x86-64-unknown-linux-ubuntu22.04"
+      container:
+        image: ponylang/ponyc-ci-x86-64-unknown-linux-ubuntu22.04-builder:20220426
+      environment:
+        CACHE_BUSTER: 20220426
+        TRIPLE_VENDOR: unknown
+        TRIPLE_OS: linux-ubuntu22.04
     - name: "release: x86-64-unknown-linux-musl"
       container:
         image: ponylang/ponyc-ci-x86-64-unknown-linux-musl-builder:20210420

.release-notes/4062.md

@@ -0,0 +1,9 @@
+## Add prebuilt ponyc binaries for Ubuntu 22.04
+
+We've added prebuilt ponyc binaries specifically made to work on Ubuntu 22.04.
+
+You can opt into using the Ubuntu binaries when using ponyup by running:
+
+```bash
+ponyup default ubuntu22.04
+```