Add Cloud Source Repositories Support

docker/known_hosts.sh

@@ -5,6 +5,7 @@ set -eu
 known_hosts_file=${1}
 known_hosts_file=${known_hosts_file:-/etc/ssh/ssh_known_hosts}
 hosts="github.com gitlab.com bitbucket.org ssh.dev.azure.com vs-ssh.visualstudio.com"
+hosts_2022="source.developers.google.com"
 
 # The heredoc below was generated by constructing a known_hosts using
 #
@@ -20,6 +21,7 @@ hosts="github.com gitlab.com bitbucket.org ssh.dev.azure.com vs-ssh.visualstudio
 #  - bitbucket.org: https://confluence.atlassian.com/bitbucket/ssh-keys-935365775.html
 #  - ssh.dev.azure.com & vs-ssh.visualstudio.com: sign in, then go to User settings -> SSH Public Keys
 #    (this is where the public key fingerprint is shown; it's not a setting)
+#  - source.developers.google.com: https://cloud.google.com/source-repositories/docs/cloning-repositories
 
 fingerprints=$(mktemp -t)
 cleanup() {
@@ -32,6 +34,7 @@ export LC_ALL=C
 
 generate() {
     ssh-keyscan ${hosts} > ${known_hosts_file}
+    ssh-keyscan -p 2022 ${hosts_2022} >> ${known_hosts_file}
 }
 
 validate() {
@@ -43,6 +46,7 @@ diff - "$fingerprints" <<EOF
 2048 SHA256:ohD8VZEXGWo6Ez8GSEJQ9WpafgLFsOfLOtGGQCQo6Og ssh.dev.azure.com (RSA)
 2048 SHA256:ohD8VZEXGWo6Ez8GSEJQ9WpafgLFsOfLOtGGQCQo6Og vs-ssh.visualstudio.com (RSA)
 2048 SHA256:zzXQOXSRBEiUtuE8AikJYKwbHaxvSc0ojez9YXaGp1A bitbucket.org (RSA)
+256 SHA256:AGvEpqYNMqsRNIviwyk4J4HM0lEylomDBKOWZsBn434 [source.developers.google.com]:2022 (ECDSA)
 256 SHA256:HbW3g8zUjNSksFbqTiUWPWg2Bq1x8xdGUrliXFzSnUw gitlab.com (ECDSA)
 256 SHA256:eUXGGm1YGsMAS7vkcx6JOJdOGHPem5gQp4taiCfCLB8 gitlab.com (ED25519)
 EOF