Since 1 or 2 days my old php container (dockerhub php:5.4-apache) can't use curl anymore. this is the log when running curl inside this container.
$> docker run --rm -ti php:5.6-apache bash
$> curl -X POST https://xxxxx.com
curl: (60) SSL certificate problem: certificate has expired
More details here: https://curl.haxx.se/docs/sslcerts.html
curl performs SSL certificate verification by default, using a "bundle"
of Certificate Authority (CA) public keys (CA certs). If the default
bundle file isn't adequate, you can specify an alternate file
using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
the bundle, the certificate verification probably failed due to a
problem with the certificate (it might be expired, or the name might
not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
the -k (or --insecure) option.
This same call works on a modern (updated) OS.
the reason is cacerts of the os are outdated
To update them you need to do the following
curl -k https://curl.se/ca/cacert.pem > cacert.pem
# works : curl --cacert cacert.pem -X POST https://xxxxx.com
apt-get install ca-certificates
openssl x509 -outform der -in cacert.pem -out cacert.crt
cp cacert.crt /usr/local/share/ca-certificates/
update-ca-certificates
other option :
sed -i 's/mozilla\/DST_Root_CA_X3.crt/!mozilla\/DST_Root_CA_X3.crt/g' /etc/ca-certificates.conf
update-ca-certificates
best option (imho) :
apt-get update
apt-get upgrade -y