Intro to Lua and Openresty, an Interlude, Issues with luarocks and Alpine
For a few exercises in this series, I have gone to installing the lua5.1 and luarocks-5.1 packages from Alpine’s apk, but installing a lua module/package with luarocks would fail:
/ # luarocks-5.1 search cjson
Warning: Failed searching manifest: Failed fetching manifest for https://luarocks.org - Failed downloading https://luarocks.org/manifest - /root/.cache/luarocks/https___luar
ocks.org/manifest
Warning: Failed searching manifest: Failed fetching manifest for https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/ - Failed downloading https:/
/raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/manifest - /root/.cache/luarocks/https___raw.githubusercontent.com_rocks-moonscript-org_moonrocks-mir
ror_master_/manifest
Warning: Failed searching manifest: Failed fetching manifest for http://luafr.org/moonrocks/ - Failed downloading http://luafr.org/moonrocks/manifest - /root/.cache/luarocks
/http___luafr.org_moonrocks_/manifest
Warning: Failed searching manifest: Failed fetching manifest for http://luarocks.logiceditor.com/rocks - Failed downloading http://luarocks.logiceditor.com/rocks/manifest -
/root/.cache/luarocks/http___luarocks.logiceditor.com_rocks/manifest“failed to fetch the manifest”.. hrm..
Having used Alpine a bit, this type of issue is usually “a package is missing” and resolved by adding some package and/or running some update process.
I first suspect SSL and ca-certificates, but that wasn’t successful:
/ # apk add --update ca-certificates
fetch http://dl-cdn.alpinelinux.org/alpine/v3.5/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.5/community/x86_64/APKINDEX.tar.gz
(1/1) Installing ca-certificates (20161130-r0)
Executing busybox-1.25.1-r0.trigger
Executing ca-certificates-20161130-r0.trigger
OK: 6 MiB in 17 packages
/ # update-ca-certificates
WARNING: ca-certificates.crt does not contain exactly one certificate or CRL: skipping
/ # luarocks-5.1 install cjson
Warning: Failed searching manifest: Failed fetching manifest for https://luarocks.org - Failed downloading https://luarocks.org/manifest - /root/.cache/luarocks/https___luar
ocks.org/manifest
...I eventually found this comment, which mentions:
Turns out that luarocks needs
unzipandcurlpackages. Please add them toalpine-fatimage, so we can have workingluarocksby default.
OK, so that should be easy:
/ # apk add unzip curl
(1/5) Installing ca-certificates (20161130-r0)
(2/5) Installing libssh2 (1.7.0-r2)
(3/5) Installing libcurl (7.52.1-r2)
(4/5) Installing curl (7.52.1-r2)
(5/5) Installing unzip (6.0-r2)
Executing busybox-1.25.1-r0.trigger
Executing ca-certificates-20161130-r0.trigger
OK: 7 MiB in 21 packages
/ # luarocks-5.1 search cjson
Search results:
===============
Rockspecs and source rocks:
---------------------------
lua-cjson
2.1.0-1 (rockspec) - https://luarocks.org
...Yay!
I eventually found this comment, which mentions:
Turns out that luarocks needs
unzipandcurlpackages. Please add them toalpine-fatimage, so we can have workingluarocksby default.
OK, so that should be easy:
/ # apk add unzip curl
(1/5) Installing ca-certificates (20161130-r0)
(2/5) Installing libssh2 (1.7.0-r2)
(3/5) Installing libcurl (7.52.1-r2)
(4/5) Installing curl (7.52.1-r2)
(5/5) Installing unzip (6.0-r2)
Executing busybox-1.25.1-r0.trigger
Executing ca-certificates-20161130-r0.trigger
OK: 7 MiB in 21 packages
/ # luarocks-5.1 search cjson
Search results:
===============
Rockspecs and source rocks:
---------------------------
lua-cjson
2.1.0-1 (rockspec) - https://luarocks.org
...Yay!
