44 wiersze
1.3 KiB
Bash
44 wiersze
1.3 KiB
Bash
#!/bin/bash
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# Exit immediately on error
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set -e
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# Write cronjob env to file, fill in sensible defaults, and read them back in
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cat <<EOF > env.sh
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BACKUP_SOURCES="${BACKUP_SOURCES:-/backup}"
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BACKUP_CRON_EXPRESSION="${BACKUP_CRON_EXPRESSION:-@daily}"
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AWS_S3_BUCKET_NAME="${AWS_S3_BUCKET_NAME:-}"
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BACKUP_FILENAME="$(date +"${BACKUP_FILENAME:-backup-%Y-%m-%dT%H-%M-%S.tar.gz}")"
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BACKUP_ARCHIVE="${BACKUP_ARCHIVE:-/archive}"
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BACKUP_WAIT_SECONDS="${BACKUP_WAIT_SECONDS:-0}"
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BACKUP_HOSTNAME="${BACKUP_HOSTNAME:-$(hostname)}"
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INFLUXDB_URL="${INFLUXDB_URL:-}"
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INFLUXDB_DB="${INFLUXDB_DB:-}"
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INFLUXDB_CREDENTIALS="${INFLUXDB_CREDENTIALS:-}"
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INFLUXDB_MEASUREMENT="${INFLUXDB_MEASUREMENT:-docker_volume_backup}"
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EOF
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chmod a+x env.sh
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source env.sh
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# Configure AWS CLI
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mkdir .aws
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cat <<EOF > .aws/credentials
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[default]
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aws_access_key_id = ${AWS_ACCESS_KEY_ID}
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aws_secret_access_key = ${AWS_SECRET_ACCESS_KEY}
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EOF
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if [ ! -z "$AWS_DEFAULT_REGION" ]; then
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cat <<EOF > .aws/config
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[default]
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region = ${AWS_DEFAULT_REGION}
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EOF
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fi
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# Add our cron entry, and direct stdout & stderr to Docker commands stdout
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echo "Installing cron.d entry: docker-volume-backup"
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echo "$BACKUP_CRON_EXPRESSION root /root/backup.sh > /proc/1/fd/1 2>&1" > /etc/cron.d/docker-volume-backup
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# Let cron take the wheel
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echo "Starting cron in foreground with expression: $BACKUP_CRON_EXPRESSION"
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cron -f
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