Abdullah ÇETİNKAYA

Get https://registry-1.docker.io/v2: x509: certificate signed by unknown authority. Step 1: openssl s_client -showcerts -connect ${DOMAIN}:...

Get https://registry-1.docker.io/v2: x509: certificate signed by unknown authority.

Step 1: openssl s_client -showcerts -connect ${DOMAIN}:${PORT}</dev/null2>/dev/null|openssl x509 -outform PEM >ca.crt

openssl s_client -showcerts -connect registry-1.docker.io:443 </dev/null 2>/dev/null|openssl x509 -outform PEM >ca.crt

Step 2: sudo cp ca.crt /etc/docker/certs.d/${DOMAIN}/ca.crt

sudo cp ca.crt /etc/docker/certs.d/registry-1.docker.io/ca.crt

Step 3: cat ca.crt | sudo tee -a /etc/ssl/certs/ca-certificates.crt

Step 4: sudo service docker restart