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Merge pull request #4 from NiceGuyIT/migrate-mesh-postgres

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Migrate meshcentral to postgres from mongodb
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Dan 2022-01-06 21:34:39 -08:00 committed by GitHub
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scripts/migrate-mesh-to-postgres.sh Executable file
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#!/usr/bin/env bash
# NOTE: Node might need some postgres modules installed.
# cd $mesh_install
# node npm install pg pgtools
# NOTE: These can be modified if necessary.
mesh_install="/meshcentral"
mesh_data="/meshcentral/meshcentral-data"
mesh_program="node_modules/meshcentral"
if ! which jq >/dev/null
then
echo "jq is not installed"
echo "Please install jq with:"
echo " sudo apt-get install jq"
exit 1
fi
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
RED='\033[0;31m'
NC='\033[0m'
print_green() {
printf >&2 "${GREEN}%0.s-${NC}" {1..80}
printf >&2 "\n"
printf >&2 "${GREEN}${1}${NC}\n"
printf >&2 "${GREEN}%0.s-${NC}" {1..80}
printf >&2 "\n"
}
print_green 'Creating login for the meshcentral database'
meshdbuser=$(cat /dev/urandom | tr -dc 'a-z' | fold -w 8 | head -n 1)
meshdbpw=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 20 | head -n 1)
# Postgres database name has to be "meshcentral"
# https://github.com/Ylianst/MeshCentral/issues/3398
meshdbname="meshcentral"
# Meshcentral configs
MESH_PG_DB="$meshdbname"
MESH_PG_USER="$meshdbuser"
MESH_PG_PW="$meshdbpw"
MESH_PG_PORT="5432"
MESH_PG_HOST="localhost"
print_green 'Creating postgres database for the meshcentral'
sudo -u postgres psql <<EOT
CREATE DATABASE ${meshdbname};
CREATE USER ${meshdbuser} WITH PASSWORD '${meshdbpw}';
ALTER ROLE ${meshdbuser} SET client_encoding TO 'utf8';
ALTER ROLE ${meshdbuser} SET default_transaction_isolation TO 'read committed';
ALTER ROLE ${meshdbuser} SET timezone TO 'UTC';
GRANT ALL PRIVILEGES ON DATABASE ${meshdbname} TO ${meshdbuser};
EOT
print_green 'Export meshcentral database'
cd "${mesh_install}"
node "${mesh_program}" --dbexport
cat "${mesh_data}/config.json" |
jq " del(.settings.MongoDb, .settings.MongoDbName) " |
jq " .settings.postgres.user |= \"${MESH_PG_USER}\" " |
jq " .settings.postgres.password |= \"${MESH_PG_PW}\" " |
jq " .settings.postgres.port |= \"${MESH_PG_PORT}\" " |
jq " .settings.postgres.host |= \"${MESH_PG_HOST}\" " > "${mesh_data}/config-postgres.json"
# Backup Meshcentral config for MongoDB
print_green 'Backing up meshcentral config'
cp "${mesh_data}/config.json" "${mesh_data}/config-mongodb-$(date "+%Y%m%dT%H%M%S").json"
cp "${mesh_data}/config-postgres.json" "${mesh_data}/config.json"
print_green 'Restart meshcentral'
sudo systemctl restart meshcentral
print_green 'Import Database from meshcentral'
node "${mesh_program}" --dbimport
print_green 'Final restart of meshcentral'
sudo systemctl restart meshcentral
print_green 'Shutting down MongoDB'
sudo systemctl stop mongod.service
print_green 'Disabling MongoDB'
sudo systemctl disable mongod.service