From 010f652060107aa0167c688c8c615d218e36d470 Mon Sep 17 00:00:00 2001
From: "Dustin C. Hatch" <dustin@hatch.name>
Date: Sun, 13 Oct 2024 18:11:40 -0500
Subject: [PATCH] hosts: Add loki1.p.b

_loki1.pyrocufflink.blue_ replaces _loki0.pyrocufflink.blue_.  The
former runs Fedora Linux and is managed by Ansible, while the latter ran
Fedora CoreOS and was managed by Ignition and _cfg_.
---
 deploy/loki1.sh             | 30 ++++++++++++++++++++++++++++
 group_vars/vm-hosts.yml     |  2 +-
 hosts                       |  2 ++
 migration/loki0-to-loki1.sh | 40 +++++++++++++++++++++++++++++++++++++
 4 files changed, 73 insertions(+), 1 deletion(-)
 create mode 100644 deploy/loki1.sh
 create mode 100644 migration/loki0-to-loki1.sh

diff --git a/deploy/loki1.sh b/deploy/loki1.sh
new file mode 100644
index 0000000..1fffbfd
--- /dev/null
+++ b/deploy/loki1.sh
@@ -0,0 +1,30 @@
+#!/bin/sh
+# vim: set ts=4 :
+
+if ! virsh list --all --name | grep -qF loki1; then
+	./newvm.sh loki1 \
+		--fedora 40 \
+		--memory 4096,currentMemory=2048 \
+		--vcpus 2 \
+		--network network=prod,mac=52:54:00:51:3c:e9 \
+		--no-console \
+		-- \
+		--disk pool=default,size=128,cache=none \
+		|| exit
+	sleep 15
+fi
+
+ANSIBLE_HOST_KEY_CHECKING=false \
+ansible-playbook \
+	-l loki1.pyrocufflink.blue \
+	wait-for-host.yml \
+	bootstrap.yml \
+	datavol.yml \
+	pyrocufflink.yml \
+	loki.yml \
+	collectd.yml \
+	promtail.yml \
+	-u root \
+	-e ansible_host=loki1.local \
+	-e @join.creds \
+	|| exit
diff --git a/group_vars/vm-hosts.yml b/group_vars/vm-hosts.yml
index d33f3d5..f36d9d9 100644
--- a/group_vars/vm-hosts.yml
+++ b/group_vars/vm-hosts.yml
@@ -245,7 +245,7 @@ vm_autostart:
 - dc-grumbly
 - dc-headphone
 - delay 30s
-- loki0
+- loki1
 - delay 10s
 - db0
 - k8s-ctrl0
diff --git a/hosts b/hosts
index b61c815..9c792ab 100644
--- a/hosts
+++ b/hosts
@@ -90,6 +90,7 @@ k8s-controller
 k8s-node
 
 [loki]
+loki1.pyrocufflink.blue
 
 [minio-backups]
 chromie.pyrocufflink.blue
@@ -145,6 +146,7 @@ file0.pyrocufflink.blue
 git0.pyrocufflink.blue
 haproxy0.pyrocufflink.blue
 k8s-ctrl0.pyrocufflink.blue
+loki1.pyrocufflink.blue
 nvr2.pyrocufflink.blue
 pxe0.pyrocufflink.blue
 smtp1.pyrocufflink.blue
diff --git a/migration/loki0-to-loki1.sh b/migration/loki0-to-loki1.sh
new file mode 100644
index 0000000..110f7b4
--- /dev/null
+++ b/migration/loki0-to-loki1.sh
@@ -0,0 +1,40 @@
+#!/bin/sh
+# vim: set sw=4 ts=4 sts=4 et :
+
+set -e
+
+cleanup() {
+    eval $(ssh-agent -k)
+}
+
+trap cleanup INT TERM QUIT EXIT
+
+eval $(ssh-agent)
+sshca-cli user login
+ssh-add -K
+
+: || {
+ssh root@loki0.pyrocufflink.blue cat '>' .ssh/known_hosts <<EOF
+@cert-authority *.pyrocufflink.blue ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAII24CZGosLMTny0a2eDB6KOG47FhlwVkTEFQNAYzKV0t
+EOF
+
+ssh root@loki0.pyrocufflink.blue btrfs subvol snapshot -r /var /var/.snapshot
+
+ssh root@loki0.pyrocufflink.blue btrfs send /var/.snapshot \| ssh root@loki1.pyrocufflink.blue btrfs receive /var/lib/loki
+
+ssh root@loki0.pyrocufflink.blue systemctl stop loki
+ssh root@loki0.pyrocufflink.blue btrfs subvol snapshot -r /var /var/.snapshot2
+ssh root@loki0.pyrocufflink.blue btrfs send -p /var/.snapshot /var/.snapshot2 \| ssh root@loki1.pyrocufflink.blue btrfs receive /var/lib/loki
+}
+
+ssh root@loki1.pyrocufflink.blue systemctl stop loki
+ssh root@loki1.pyrocufflink.blue cd /var/lib/loki '&&' rm -rf rules chunks tsdb-shipper-active tsdb-shipper-cache wal compactor
+ssh root@loki1.pyrocufflink.blue cp -a --reflink=always /var/lib/loki/.snapshot2/lib/loki/. /var/lib/loki
+
+ssh root@loki1.pyrocufflink.blue systemctl start loki
+
+nsupdate -g <<EOF
+del loki.pyrocufflink.blue
+add loki.pyrocufflink.blue 300 A 172.30.0.14
+send
+EOF