Initialize ChuBlog backend with SSH Git publishing

deploy/sshd_config

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+Port 2222
+ListenAddress 0.0.0.0
+HostKey /host-keys/ssh_host_ed25519_key
+PidFile /run/sshd.pid
+PermitRootLogin no
+PasswordAuthentication no
+KbdInteractiveAuthentication no
+PermitEmptyPasswords no
+PubkeyAuthentication yes
+AuthenticationMethods publickey
+PubkeyAcceptedAlgorithms ssh-ed25519
+AllowUsers git
+AuthorizedKeysFile none
+AuthorizedKeysCommand /usr/local/bin/chublog-authorized-keys
+AuthorizedKeysCommandUser root
+AllowAgentForwarding no
+AllowTcpForwarding no
+AllowStreamLocalForwarding no
+GatewayPorts no
+PermitTunnel no
+X11Forwarding no
+PermitTTY no
+PermitUserEnvironment no
+PermitUserRC no
+DisableForwarding yes
+MaxAuthTries 3
+MaxSessions 1
+MaxStartups 3:50:10
+LoginGraceTime 20
+ClientAliveInterval 15
+ClientAliveCountMax 3
+LogLevel VERBOSE
+UsePAM no