While building swift compiler from source in Docker from a CentOS 7 base, the Swift build process always errors out with "no space left on device" even though I gave Docker a 120 GB allotment.
Here are the commands I run to build Swift:
RUN mkdir swift_source; cd swift_source \
&& git clone --depth 1 --branch swift-5.2.4-RELEASE https://github.com/apple/swift/ \
&& ./swift/utils/update-checkout --clone --tag swift-5.2.4-RELEASE \
&& cd /swift_source/swift \
&& utils/build-script --release-debuginfo --install-swiftpm true -j8
Why would this consume 120GB?
Does Swift really take 120 GB to build ...? Or is Docker malfunctioning?
The last thing in the Swift build log is:
[1011/1011][100%][1391.472s] Generating ../../../lib/swift/linux/libswiftRuntimeUnittest.so
Building the standard library for: swift-test-stdlib-linux-x86_64
Error processing tar file(exit status 1): write /swift_source/llvm-project/.git/objects/pack/pack-0dda29f330fc5d19735e97903df47249246f2bf7.pack: no space left on device
Before I started I verified only 4gb were in use (did a full prune).
After the failure, docker image ls outputs:
REPOSITORY TAG IMAGE ID CREATED SIZE
<none> <none> b9c08d2cc5ee 3 hours ago 701MB
<none> <none> e59f7a91d082 3 hours ago 822MB
docker-dev-artifactory.xxxxx.com/uic/bamboo-node-12 latest d3fea410682c 33 hours ago 821MB
docker-dev-artifactory.xxxxxx.com/centos7-zulu11jdk/master latest 5dd2f2e4b6f1 3 days ago 584MB
And docker system df outputs:
TYPE TOTAL ACTIVE SIZE RECLAIMABLE
Images 4 1 1.523GB 1.406GB (92%)
Containers 1 0 61.34GB 61.34GB (100%)
Local Volumes 0 0 0B 0B
Build Cache 0 0 0B 0B
So I have no idea how it's consuming 120gb. Any ideas?