Rebuild image to update ca-certificates

[aebm]

Hi,

This images has an old ca-certificates package (1). So when using a blackbox-exporter image I got (2) . If i rebuild from scratch the image the ca-certificates get update to 20230311+deb12u1 and then the blackbox exporter can verify the certificate when it connect.

If you want more details you can reproduce the problem if checking agains a certificate that uses as root CA Sectigo Public Server Authentication Root R46.

Cheers

(1)

sudo docker run --rm -ti --entrypoint sh prom/blackbox-exporter:master 
/ # ls -l /etc/ssl/certs/ca-certificates.crt 
-rw-r--r--    1 root     root        213777 Dec 15  2023 /etc/ssl/certs/ca-certificates.crt

(2)

tls: failed to verify certificate: x509: certificate signed by unknown authority