`/var/runtime/bootstrap: Permission Denied` about aws-lambda-container-julia HOT 3 OPEN

Modifying the source a bit. The result of ls -la /var/runtime/bootstrap

-rwxr-xr-x 1 root root 185 Sep 8 17:01 /var/runtime/bootstrap

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I added a Pull-request fixing this in the dockerfile (#4). Please noe that this would need to run docker build with the DOCKER_BUILDKIT=1 flag since chmod-ing something is a feature that requires BUILDKIT enabled (see eg here).

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I'm not able to see this problem with my test today... I was able to run it properly from AWS without doing any chmod.

When I check out the repo, the bootstrap file already has permission 0775. I think the COPY command should have carried over the executable flag. Right?

(base) ✔ ~/AWS/aws-lambda-container-julia [tk/julia-1.8-update|✔] 
03:14 $ ls -l
total 40
-rwxrwxr-x 1 ec2-user ec2-user  186 Jan  3 02:16 bootstrap
-rw-rw-r-- 1 ec2-user ec2-user 1201 Jan  3 03:02 Dockerfile
-rw-rw-r-- 1 ec2-user ec2-user 1102 Jan  3 02:16 LICENSE
-rw-rw-r-- 1 ec2-user ec2-user 3227 Jan  3 02:16 main.jl
-rw-rw-r-- 1 ec2-user ec2-user   71 Jan  3 02:16 Manifest.toml
-rw-rw-r-- 1 ec2-user ec2-user  257 Jan  3 02:16 Project.toml
-rw-rw-r-- 1 ec2-user ec2-user 3153 Jan  3 03:12 README.md
drwxrwxr-x 2 ec2-user ec2-user 4096 Jan  3 02:16 scripts
drwxrwxr-x 2 ec2-user ec2-user 4096 Jan  3 02:16 src
drwxrwxr-x 2 ec2-user ec2-user 4096 Jan  3 02:16 test

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