Matrix backup draft

2 files changed, 49 insertions, 0 deletions

diff --git a/app/backup/build/backup-matrix/Dockerfile b/app/backup/build/backup-matrix/Dockerfile
new file mode 100644
index 0000000..34b6040
--- /dev/null
+++ b/app/backup/build/backup-matrix/Dockerfile
@@ -0,0 +1,22 @@
+FROM golang:buster as builder
+
+WORKDIR /root
+RUN git clone https://filippo.io/age && cd age/cmd/age && go build -o age .
+
+FROM amd64/debian:buster
+
+COPY --from=builder /root/age/cmd/age/age /usr/local/bin/age
+
+RUN apt-get update && \
+	apt-get -qq -y full-upgrade && \
+	apt-get install -y rsync wget openssh-client postgresql-client && \
+	apt-get clean && \
+	rm -f /var/lib/apt/lists/*_*
+
+RUN mkdir -p /root/.ssh
+WORKDIR /root
+
+COPY do_backup.sh /root/do_backup.sh
+
+CMD "/root/do_backup.sh"
+
diff --git a/app/backup/build/backup-matrix/do_backup.sh b/app/backup/build/backup-matrix/do_backup.sh
new file mode 100755
index 0000000..d7dd9f2
--- /dev/null
+++ b/app/backup/build/backup-matrix/do_backup.sh
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+set -x -e
+
+cd /root
+
+chmod 0600 .ssh/id_ed25519
+
+cat > .ssh/config <<EOF
+Host backuphost
+	HostName $TARGET_SSH_HOST
+	Port $TARGET_SSH_PORT
+	User $TARGET_SSH_USER
+EOF
+
+echo "export sql"
+# note, -Fc means that postgresql compresses the output
+PGPASSWORD=$MATRIX_PSQL_PWD
+pg_dump -v -Fc -U $MATRIX_PSQL_USER -h psql-proxy.service.2.cluster.deuxfleurs.fr $MATRIX_PSQL_DB | \
+	age -r "$(cat /root/.ssh/id_ed25519.pub)" | \
+	ssh backuphost "cat > $TARGET_SSH_DIR/matrix/db-$(date --iso-8601=minute).gz.age"
+
+MATRIX_MEDIA="/mnt/glusterfs/chat/matrix/synapse/media"
+echo "export local_content"
+tar -vcf - ${MATRIX_MEDIA} | \
+	age -r "$(cat /root/.ssh/id_ed25519.pub)" | \
+	ssh backuphost "cat > $TARGET_SSH_DIR/matrix/media-$(date --iso-8601=minute).gz.age"