arm64 docker image broken since 1.7.5

[tom2199]

Describe the bug

If using an docker image newer then 1.7.4 (1.7.5 and onwards) the docker image contains the wrong restic binary. The error reads:
exec /usr/bin/restic: exec format error

Expected behavior

Just like 1.7.4 and before, bundle the right restic binary (arm64).

Environment

• OS: Ubuntu 18.04 on arm64
• Version: 1.7.5 onwards

[cupcakearmy]

This is weird, the docker image is based on the restic docker image itself 🤔

autorestic/Dockerfile

Line 9 in 78b0db5

FROM restic/restic:0.15.1

[tom2199]

The restic docker image seems to only be published for amd64 (see here). I think this is the issue as on 1.7.4 and before the alpine image was used instead, correct?

[cupcakearmy]

How did docker not warn about this, you are totally right, the image is only on x86. Need to redo the dockerfile then