mirror of
git://f0xx.org/ac/ac-deploy
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54 lines
1.5 KiB
Bash
54 lines
1.5 KiB
Bash
#!/bin/sh
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# Deploy mysqld_exporter as Docker container on artc0
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# Run once as root / sudo after creating the MariaDB monitoring user below.
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#
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# PREREQUISITE — run in mysql:
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# CREATE USER 'exporter'@'localhost' IDENTIFIED BY 'ExporterPass2026!' WITH MAX_USER_CONNECTIONS 3;
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# GRANT PROCESS, REPLICATION CLIENT, SELECT ON *.* TO 'exporter'@'localhost';
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# FLUSH PRIVILEGES;
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#
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# Then run this script.
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set -e
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CONTAINER_NAME="mysqld_exporter"
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CNF_FILE="/etc/mysqld-exporter.cnf"
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# Write config file if not present
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if [ ! -f "$CNF_FILE" ]; then
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cat > "$CNF_FILE" << 'EOF'
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[client]
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user=exporter
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password=ExporterPass2026!
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socket=/run/mysqld/mysqld.sock
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EOF
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chmod 644 "$CNF_FILE"
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fi
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# Get socket GID to allow container user to access it
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SOCK_GID=$(stat -c '%g' /run/mysqld/mysqld.sock)
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# Stop existing container if running
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docker stop "$CONTAINER_NAME" 2>/dev/null || true
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docker rm "$CONTAINER_NAME" 2>/dev/null || true
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# Run with Unix socket mount — MariaDB uses skip-networking (no TCP)
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docker run -d \
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--name "$CONTAINER_NAME" \
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--restart unless-stopped \
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--user "65534:${SOCK_GID}" \
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-v "${CNF_FILE}:/etc/.my.cnf:ro" \
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-v "/run/mysqld/mysqld.sock:/run/mysqld/mysqld.sock:ro" \
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-p 9104:9104 \
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prom/mysqld-exporter:latest \
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--config.my-cnf=/etc/.my.cnf \
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--collect.info_schema.innodb_metrics \
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--collect.global_status \
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--collect.global_variables \
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--web.listen-address=":9104"
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echo "mysqld_exporter started, listening on :9104"
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sleep 3
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docker logs "$CONTAINER_NAME" 2>&1 | tail -5
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curl -s http://localhost:9104/metrics | grep 'mysql_up'
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