update

2026-07-17 09:40:12 +02:00
parent 4448674b28
commit 6eddb7e2c5
3 changed files with 177 additions and 3 deletions
@@ -0,0 +1,131 @@
+#!/usr/bin/env python3
+"""Resize an LVM logical volume and its filesystem.
+
+Author: Bart Sjerps
+Date: 2026-07-17
+Generated by opencode
+"""
+import os
+import sys
+import subprocess
+import argparse
+from typing import Optional
+
+
+def die(msg: str) -> None:
+    """Print an error message to stderr and exit with code 2."""
+    print(f"Error: {msg}", file=sys.stderr)
+    sys.exit(2)
+
+
+def run(cmd: list[str], dryrun: bool = False) -> str:
+    """Execute a shell command, returning stdout. Exits on non-zero status."""
+    if dryrun:
+        print(f"[DRY-RUN] {' '.join(cmd)}")
+        return ""
+    try:
+        result = subprocess.run(cmd, capture_output=True, text=True, check=True)
+    except subprocess.CalledProcessError as e:
+        err = (e.stderr or e.stdout or "").strip()
+        die(f"{' '.join(cmd)} failed: {err or f'exit code {e.returncode}'}")
+    return result.stdout.strip()
+
+
+def resolve_lv(mount: Optional[str] = None, lvname: Optional[str] = None) -> str:
+    """Resolve a mountpoint or LV name to an absolute LVM device path."""
+    if mount:
+        dev = run(["findmnt", "-no", "SOURCE", "--target", mount])
+        if not dev:
+            die(f"No device mounted at {mount}")
+    else:
+        dev = lvname
+
+    if not dev.startswith("/dev/"):
+        dev = f"/dev/{dev}"
+
+    if not run(["lvs", dev]):
+        die(f"{dev} is not an LVM logical volume")
+
+    return dev
+
+
+def detect_fs(dev: str) -> str:
+    """Detect the filesystem type on a block device via blkid."""
+    fstype = run(["blkid", "-o", "value", "-s", "TYPE", dev])
+    if not fstype:
+        die(f"Cannot detect filesystem on {dev}")
+    return fstype
+
+
+def resolve_mount(dev: str, mount: Optional[str] = None) -> str:
+    """Return a mountpoint for a device, using the provided one or looking it up."""
+    if mount:
+        return mount
+
+    mountpoint = run(["findmnt", "-no", "TARGET", "--source", dev])
+    if not mountpoint:
+        die(f"No mountpoint found for {dev}")
+    return mountpoint
+
+
+def lvextend_cmd(size: str, dev: str) -> list[str]:
+    """Build an lvextend command, using -l for extent/percent sizes."""
+    if "%" in size:
+        return ["lvextend", "-l", size, dev]
+    return ["lvextend", "-L", size, dev]
+
+
+def btrfs_resize_size(size: str) -> str:
+    """Map an LVM size spec to a btrfs filesystem resize argument."""
+    if "%" in size:
+        return "max"
+    return size
+
+
+def validate_resize(dev: str, fstype: str, mount: Optional[str] = None) -> Optional[str]:
+    """Validate resize is possible before mutating the LV. Returns mountpoint when needed."""
+    if fstype in ("ext2", "ext3", "ext4"):
+        return None
+    if fstype in ("xfs", "btrfs"):
+        return resolve_mount(dev, mount)
+    die(f"Unsupported filesystem: {fstype}")
+
+
+def do_resize(dev: str, fstype: str, size: str, mount: Optional[str] = None, dryrun: bool = False) -> None:
+    """Extend the LV with lvextend, then resize the filesystem accordingly."""
+    fs_mount = validate_resize(dev, fstype, mount)
+
+    run(lvextend_cmd(size, dev), dryrun=dryrun)
+
+    if fstype in ("ext2", "ext3", "ext4"):
+        run(["resize2fs", dev], dryrun=dryrun)
+    elif fstype == "xfs":
+        run(["xfs_growfs", fs_mount], dryrun=dryrun)
+    elif fstype == "btrfs":
+        run(["btrfs", "filesystem", "resize", btrfs_resize_size(size), fs_mount], dryrun=dryrun)
+
+    if not dryrun:
+        print("Done.")
+
+
+def main() -> None:
+    """Parse args, validate root, then resize LV and filesystem."""
+    parser = argparse.ArgumentParser(description="Resize an LVM logical volume and its filesystem")
+    parser.add_argument("-s", dest="size", required=True, help="New size (e.g. +10G, -5G, 20G, 100%FREE)")
+    group = parser.add_mutually_exclusive_group(required=True)
+    group.add_argument("-m", dest="mount", metavar="MOUNTPOINT", help="Select LV by mountpoint")
+    group.add_argument("-l", dest="lvname", metavar="LVNAME", help="Select LV by name or path (e.g. vg0/data)")
+    parser.add_argument("-n", dest="dryrun", action="store_true", help="Dry-run – print what would be done without executing")
+
+    args = parser.parse_args()
+
+    if os.geteuid() != 0:
+        die("This script must be run as root")
+
+    lvdev = resolve_lv(mount=args.mount, lvname=args.lvname)
+    fstype = detect_fs(lvdev)
+    do_resize(lvdev, fstype, args.size, mount=args.mount, dryrun=args.dryrun)
+
+
+if __name__ == "__main__":
+    main()
@@ -3,24 +3,28 @@ atc-docker01.dell-atc.lan
 atc-docker02.dell-atc.lan
 atc-db01.dell-atc.lan
 atc-dns1.dell-atc.lan
-# atc-db02.dell-atc.lan
 atc-lake01.dell-atc.lan
 atc-elastic01.dell-atc.lan
 atc-kafka01.dell-atc.lan
 atc-portal01.dell-atc.lan
 atc-grafana.dell-atc.lan
-# atc-test01.dell-atc.lan
 atc-mgt01.dell-atc.lan
 atc-gpu-bart.dell-atc.lan
 atc-gpu-dev.dell-atc.lan
 atc-gpu-mo1.dell-atc.lan
 atc-gpu-prod.dell-atc.lan
 atc-nas.dell-atc.lan
+dns1.dell-fde.lan
+dns2.dell-fde.lan
+db01.dell-fde.lan
+haproxy.dell-fde.lan

 [proxmox]
 dcp-pve01.dell-atc.lan
 DSS-GPU.dell-atc.lan
 pve2.dell-atc.lan
+proxmox01.dell-fde.lan
+proxmox02.dell-fde.lan

 [docker]
 atc-mgt01.dell-atc.lan
@@ -32,7 +36,8 @@ atc-gpu-prod.dell-atc.lan
 atc-db02.dell-atc.lan
 atc-dns1.dell-atc.lan
 atc-dns1.lan
-# atc-dns2.dell-atc.lan
+dns1.dell-fde.lan
+dns2.dell-fde.lan

 [rhel]
 atc-docker01.dell-atc.lan
@@ -45,6 +50,10 @@ atc-gpu-prod.dell-atc.lan
 atc-nas.dell-atc.lan
 atc-backup.dell-atc.lan
 atc-db01.dell-atc.lan
+dns1.dell-fde.lan
+haproxy.dell-fde.lan
+dns2.dell-fde.lan
+db01.dell-fde.lan

 [borg_servers]
 atc-backup.dell-atc.lan
@@ -62,10 +71,15 @@ dcp-pve01.dell-atc.lan
 pve2.dell-atc.lan
 dss-gpu.dell-atc.lan
 atc-dns1.lan
+dns1.dell-fde.lan
+haproxy.dell-fde.lan
+dns2.dell-fde.lan
+db01.dell-fde.lan


 [postgres]
 atc-db01.dell-atc.lan
+db01.dell-fde.lan

 [nvidia]
 atc-gpu-bart.dell-atc.lan
@@ -6,6 +6,7 @@
      ansible.builtin.dnf:
        name: 'https://download.postgresql.org/pub/repos/yum/reporpms/EL-9-x86_64/pgdg-redhat-repo-latest.noarch.rpm'
        state: present
+        disable_gpg_check: true

    - name: Postgres RPMs
      ansible.builtin.dnf:
@@ -15,6 +16,34 @@
        state: latest

  tasks:
+    - name: Create Database Logical Volume
+      community.general.lvol:
+        vg: data
+        lv: pgdata
+        size: 32G
+
+    - name: Create Database Filesystem
+      community.general.filesystem:
+        fstype: xfs
+        dev: /dev/data/pgdata
+
+    - name: Mount filesystems
+      ansible.posix.mount:
+        path: '/var/lib/pgsql'
+        src: '/dev/data/pgdata'
+        opts: 'noatime'
+        state: mounted
+        fstype: "xfs"
+
+    - name: Open Firewall port
+      firewalld:
+        # service: docker-registry
+        service: postgresql
+        permanent: true
+        state: enabled
+        immediate: yes
+      when: ansible_facts['os_family'] == "RedHat"
+
    - name: PG Backup directory
      file:
        path: '/var/backups/postgres'