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Postfix Insights

Remote logs (SSHFS)

The container reads remote logs from host SSHFS mounts. SSH keys stay on the host; the container bind-mounts the directories read-only. Nothing is copied into the container.

1. Install SSHFS and allow other users

Section titled “1. Install SSHFS and allow other users”
Terminal window
sudo apt-get install -y sshfs
sudo sed -i 's/^#\?user_allow_other.*/user_allow_other/' /etc/fuse.conf

2. Mount each server’s logs on the host

Section titled “2. Mount each server’s logs on the host”

Create mount directories and a systemd mount/automount unit per server so the mounts survive reboots and reconnect on failure. The full production checklist lives in docs/DEPLOYMENT.md in the repository.

3. Point the container at the mounts

Section titled “3. Point the container at the mounts”

Bind-mount the mount base into the container and set:

Terminal window
HOST_MOUNTED_REMOTES=true
REMOTE_MOUNT=/mnt/remote_logs
REMOTE_SERVERS=mail-server-01,mail-server-02

Each server’s logs are discovered under its own directory beneath REMOTE_MOUNT, using the same rotation- and gzip-aware globbing as local logs.