Add ncurses dependency

[pcapriotti]

It seems 36f51b5 has added a runtime dependency on ncurses to spar-schema. This adds ncurses to the docker image dependencies, so that the ephemeral services and CI can run.

Checklist

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• The PR description provides context as to why the change should occur and what the code contributes to that effect. This could also be a link to a JIRA ticket or a Github issue, if there is one.
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[jschaul]

docker run -it --entrypoint sh quay.io/wire/spar-schema:latest
/ # ldd /usr/bin/spar-schema 
	/lib/ld-musl-x86_64.so.1 (0x749341a26000)
Error loading shared library libncursesw.so.6: No such file or directory (needed by /usr/bin/spar-schema)
	libxml2.so.2 => /usr/lib/libxml2.so.2 (0x7493418fd000)
	libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x749341764000)
	libz.so.1 => /lib/libz.so.1 (0x74934174a000)
	libssl.so.1.1 => /lib/libssl.so.1.1 (0x7493416c9000)
	libcrypto.so.1.1 => /lib/libcrypto.so.1.1 (0x74934144a000)
	libgmp.so.10 => /usr/lib/libgmp.so.10 (0x7493413e3000)
	libc.musl-x86_64.so.1 => /lib/ld-musl-x86_64.so.1 (0x749341a26000)
	libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x7493413cf000)
	liblzma.so.5 => /usr/lib/liblzma.so.5 (0x7493413ac000)
/ # apk add ncurses
fetch http://dl-cdn.alpinelinux.org/alpine/v3.12/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.12/community/x86_64/APKINDEX.tar.gz
(1/3) Installing ncurses-terminfo-base (6.2_p20200523-r0)
(2/3) Installing ncurses-libs (6.2_p20200523-r0)
(3/3) Installing ncurses (6.2_p20200523-r0)
Executing busybox-1.31.1-r19.trigger
OK: 44 MiB in 31 packages
/ # ldd /usr/bin/spar-schema 
	/lib/ld-musl-x86_64.so.1 (0x7cd1420c5000)
	libncursesw.so.6 => /usr/lib/libncursesw.so.6 (0x7cd14206a000)
	libxml2.so.2 => /usr/lib/libxml2.so.2 (0x7cd141f41000)
	libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x7cd141da8000)
	libz.so.1 => /lib/libz.so.1 (0x7cd141d8e000)
	libssl.so.1.1 => /lib/libssl.so.1.1 (0x7cd141d0d000)
	libcrypto.so.1.1 => /lib/libcrypto.so.1.1 (0x7cd141a8e000)
	libgmp.so.10 => /usr/lib/libgmp.so.10 (0x7cd141a27000)
	libc.musl-x86_64.so.1 => /lib/ld-musl-x86_64.so.1 (0x7cd1420c5000)
	libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x7cd141a13000)
	liblzma.so.5 => /usr/lib/liblzma.so.5 (0x7cd1419f0000)

This looks like it will do the trick.

[isovector]

Thanks for fixing this. Sorry about breaking CI :(

[fisx]

I still couldn't see the problem in the concourse log, though. Instead, I see this:

[...]
++ grep -v Running
++ grep -v Pending
++ kubectl -n test-6lwoy93o4o3f get pods
++ grep -v Completed
++ grep -v STATUS
++ grep -v ContainerCreating
++ awk '{print $1}'
++ xargs -n 1 '-I{}' bash -c 'printf '\''\n\n----LOGS FROM {}:\n'\''; kubectl -n test-6lwoy93o4o3f logs --tail=30 {}'
xargs: warning: options --max-args and --replace/-I/-i are mutually exclusive, ignoring previous --max-args value

----LOGS FROM cassandra-migrations-bk6kz:
Error from server (BadRequest): container "job-done" in pod "cassandra-migrations-bk6kz" is waiting to start: PodInitializing
++ true
++ kubectl -n test-6lwoy93o4o3f get pods
++ grep Pending
++ awk '{print $1}'
++ xargs -n 1 '-I{}' bash -c 'printf '\''\n\n----DESCRIBE '\''pending'\'' {}:\n'\''; kubectl -n test-6lwoy93o4o3f describe pod {}'
xargs: warning: options --max-args and --replace/-I/-i are mutually exclusive, ignoring previous --max-args value
make: *** [Makefile:270: kube-integration-setup] Error 1

Anyway I bumped alpine-deps: https://bridge-ie-concourse.zinfra.io/teams/main/pipelines/docker-images/jobs/alpine-deps/builds/7