There are currently some issues with regard to OpenSSL and Alpine Linux on
Proxmox, tracked as #5194 by Promox since the 19th of January, with some patches sent by
email (sigh) to fix the issue still waiting to land. The root cause being
Proxmox setting SSL_CERT_FILE='/usr/lib/ssl/cert.pem' when pct enter is
used, while on Alpine the cert.pem file is in /etc/ssl/cert.pem.
In the meantime, here is what the problem looks like (for SEO) and how to hack around it:
root@pve ~ pct enter 122
# apk update
fetch https://dl-cdn.alpinelinux.org/alpine/v3.18/main/x86_64/APKINDEX.tar.gz
48AB2E51FA7F0000:error:80000002:system library:file_open:No such file or directory:providers/implementations/storemgmt/file_store.c:267:calling stat(/usr/lib/ssl/certs)
48AB2E51FA7F0000:error:80000002:system library:file_open:No such file or directory:providers/implementations/storemgmt/file_store.c:267:calling stat(/usr/lib/ssl/certs)
48AB2E51FA7F0000:error:80000002:system library:file_open:No such file or directory:providers/implementations/storemgmt/file_store.c:267:calling stat(/usr/lib/ssl/certs)
48AB2E51FA7F0000:error:80000002:system library:file_open:No such file or directory:providers/implementations/storemgmt/file_store.c:267:calling stat(/usr/lib/ssl/certs)
48AB2E51FA7F0000:error:0A000086:SSL routines:tls_post_process_server_certificate:certificate verify failed:ssl/statem/statem_clnt.c:1889:
WARNING: updating and opening https://dl-cdn.alpinelinux.org/alpine/v3.18/main: Permission denied
fetch https://dl-cdn.alpinelinux.org/alpine/v3.18/community/x86_64/APKINDEX.tar.gz
48AB2E51FA7F0000:error:80000002:system library:file_open:No such file or directory:providers/implementations/storemgmt/file_store.c:267:calling stat(/usr/lib/ssl/certs)
48AB2E51FA7F0000:error:80000002:system library:file_open:No such file or directory:providers/implementations/storemgmt/file_store.c:267:calling stat(/usr/lib/ssl/certs)
48AB2E51FA7F0000:error:80000002:system library:file_open:No such file or directory:providers/implementations/storemgmt/file_store.c:267:calling stat(/usr/lib/ssl/certs)
48AB2E51FA7F0000:error:80000002:system library:file_open:No such file or directory:providers/implementations/storemgmt/file_store.c:267:calling stat(/usr/lib/ssl/certs)
48AB2E51FA7F0000:error:0A000086:SSL routines:tls_post_process_server_certificate:certificate verify failed:ssl/statem/statem_clnt.c:1889:
WARNING: updating and opening https://dl-cdn.alpinelinux.org/alpine/v3.18/community: Permission denied
4 unavailable, 0 stale; 30 distinct packages available
# ^D
root@pve ~ lxc-attach -n 122
# apk update; apk upgrade
fetch https://dl-cdn.alpinelinux.org/alpine/v3.18/main/x86_64/APKINDEX.tar.gz
fetch https://dl-cdn.alpinelinux.org/alpine/v3.18/community/x86_64/APKINDEX.tar.gz
v3.18.6-10-g1bb71e18dfb [https://dl-cdn.alpinelinux.org/alpine/v3.18/main]
v3.18.6-9-g41de282e84d [https://dl-cdn.alpinelinux.org/alpine/v3.18/community]
OK: 20069 distinct packages available
OK: 10 MiB in 30 packages
# ^D
root@pve 16:58 ~
tl;dr: lxc attach -n 123 instead of pct enter 123