Merge pull request #23223 from famod/ci-free-up-space

Remove more unused docker images to free up space for Early Access JDK Build

Author: gsmet

.github/ci-prerequisites.sh

@@ -1,7 +1,45 @@
-# Reclaim disk space, otherwise we only have 13 GB free at the start of a job
+# Reclaim disk space, otherwise we have too little free space at the start of a job
+#
+# Numbers as of 2022-01-26:
+#
+# $ df -h
+# Filesystem      Size  Used Avail Use% Mounted on
+# /dev/root        84G   52G   32G  63% /
+# devtmpfs        3.4G     0  3.4G   0% /dev
+# tmpfs           3.4G  4.0K  3.4G   1% /dev/shm
+# tmpfs           696M  1.1M  695M   1% /run
+# tmpfs           5.0M     0  5.0M   0% /run/lock
+# tmpfs           3.4G     0  3.4G   0% /sys/fs/cgroup
+# /dev/loop0       62M   62M     0 100% /snap/core20/1270
+# /dev/sda15      105M  5.2M  100M   5% /boot/efi
+# /dev/loop1       68M   68M     0 100% /snap/lxd/21835
+# /dev/loop2       44M   44M     0 100% /snap/snapd/14295
+# /dev/sdb1        14G  4.1G  9.0G  32% /mnt
+#
+# $ docker images
+# REPOSITORY       TAG         IMAGE ID       CREATED        SIZE
+# node             12-alpine   8a6e486e9817   2 weeks ago    91.1MB
+# node             16-alpine   23990429c0d7   2 weeks ago    109MB
+# node             12          44d575d74d9f   2 weeks ago    918MB
+# node             14          24d97ba03bf7   2 weeks ago    944MB
+# node             14-alpine   194cd0d85d8a   2 weeks ago    118MB
+# node             16          842962c4b3a7   2 weeks ago    905MB
+# ubuntu           20.04       d13c942271d6   2 weeks ago    72.8MB
+# ubuntu           18.04       886eca19e611   2 weeks ago    63.1MB
+# buildpack-deps   stretch     46000751048f   5 weeks ago    835MB
+# buildpack-deps   buster      ac4279e940f3   5 weeks ago    804MB
+# buildpack-deps   bullseye    d724319bd076   5 weeks ago    834MB
+# debian           9           c599fc96ef79   5 weeks ago    101MB
+# debian           10          8a94f77c4ac3   5 weeks ago    114MB
+# debian           11          6f4986d78878   5 weeks ago    124MB
+# moby/buildkit    latest      19340e24de14   2 months ago   144MB
+# alpine           3.12        b0925e081921   2 months ago   5.59MB
+# alpine           3.13        6b7b3256dabe   2 months ago   5.62MB
+# alpine           3.14        0a97eee8041e   2 months ago   5.6MB
+# ubuntu           16.04       b6f507652425   4 months ago   135MB
 
-time docker rmi node:10 node:12
-# That is 18 GB
+time docker rmi node:12 node:14 node:16 buildpack-deps:stretch buildpack-deps:buster buildpack-deps:bullseye
+# That is 4.07 GB
 time sudo rm -rf /usr/share/dotnet
-# That is 1.2 GB
+# That is 1.78 GB
 time sudo rm -rf /usr/share/swift