Make MAX_TRIVY_PARSE_BYTES configurable.

[jar145]

Currently, one of my containers is failing because the dependency tree is too large. I saw that MAX_TRIVY_PARSE_BYTES is hardcoded. Is there any way we could either increase that value or make it configurable?

Here is the error I am running into:

Update failed: uptime-kuma-uptime-kuma-1 — Security scan failed: Trivy output is too large to parse (40313952 bytes); max supported is 20971520 bytes

[scttbnsn]

You're right, that limit was hardcoded, and it was also wrong. Drydock collected up to 50 MB of Trivy output and then refused to parse anything over 20 MB, so a report like yours (40 MB) was captured and thrown away.

Fixed in #1359. There's one limit now, it's 64 MB by default, and you can raise it:

DD_SECURITY_TRIVY_MAXOUTPUTBYTES=134217728

It takes a byte count from 1 MB to 1 GB. Your uptime-kuma scan fits under the new default, so you shouldn't need to set anything. If an image does go over, the error names the variable.

That's in 1.7.0-rc.23 and will be in 1.7.0. If you try rc.23 and it still fails, post the error here.