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#! /bin/sh
set -e
set -o pipefail
if [ "${S3_ACCESS_KEY_ID}" = "**None**" ]; then
echo "You need to set the S3_ACCESS_KEY_ID environment variable."
exit 1
fi
if [ "${S3_SECRET_ACCESS_KEY}" = "**None**" ]; then
echo "You need to set the S3_SECRET_ACCESS_KEY environment variable."
exit 1
fi
if [ "${S3_BUCKET}" = "**None**" ]; then
echo "You need to set the S3_BUCKET environment variable."
exit 1
fi
if [ "${POSTGRES_DATABASE}" = "**None**" ]; then
echo "You need to set the POSTGRES_DATABASE environment variable."
exit 1
fi
if [ "${POSTGRES_HOST}" = "**None**" ]; then
if [ -n "${POSTGRES_PORT_5432_TCP_ADDR}" ]; then
POSTGRES_HOST=$POSTGRES_PORT_5432_TCP_ADDR
POSTGRES_PORT=$POSTGRES_PORT_5432_TCP_PORT
else
echo "You need to set the POSTGRES_HOST environment variable."
exit 1
fi
fi
if [ "${POSTGRES_USER}" = "**None**" ]; then
echo "You need to set the POSTGRES_USER environment variable."
exit 1
fi
if [ "${POSTGRES_PASSWORD}" = "**None**" ]; then
echo "You need to set the POSTGRES_PASSWORD environment variable or link to a container named POSTGRES."
exit 1
fi
if [ "${S3_ENDPOINT}" == "**None**" ]; then
AWS_ARGS=""
else
AWS_ARGS="--endpoint-url ${S3_ENDPOINT}"
fi
# env vars needed for aws tools
export AWS_ACCESS_KEY_ID=$S3_ACCESS_KEY_ID
export AWS_SECRET_ACCESS_KEY=$S3_SECRET_ACCESS_KEY
export AWS_DEFAULT_REGION=$S3_REGION
export PGPASSWORD=$POSTGRES_PASSWORD
POSTGRES_HOST_OPTS="-h $POSTGRES_HOST -p $POSTGRES_PORT -U $POSTGRES_USER $POSTGRES_EXTRA_OPTS"
echo "Creating dump of ${POSTGRES_DATABASE} database from ${POSTGRES_HOST}..."
pg_dump $POSTGRES_HOST_OPTS $POSTGRES_DATABASE | gzip > dump.sql.gz
echo "Uploading dump to $S3_BUCKET"
cat dump.sql.gz | aws $AWS_ARGS s3 cp - s3://$S3_BUCKET/$S3_PREFIX/${POSTGRES_DATABASE}_$(date +"%Y-%m-%dT%H:%M:%SZ").sql.gz || exit 2
echo "SQL backup uploaded successfully"