docs/node2-memory-refine
7
Commits
| Author | SHA1 | Message | Date | |
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  jakman85andClaude Opus 5
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c1f24e4a6d |
fix(dns): resilient node resolvers — mechanism-detecting, per-environment (R-DNS-01/03)
Re-authors the fix stranded on origin/fix/node-dns-resilient-upstream (
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jakman85andClaude Opus 5
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e623d27e2d |
feat(ansible): parameterise target groups so prod reuses the roles unchanged (R-ENV-02)
roles/k3s_server, roles/cilium and every node-host playbook hardcoded the dev group
names k3s_primary/k3s_secondary/k3s_servers, so the prod inventory groups could not be
selected at all. That broke the R-ENV-02 promise that prod reuses the SAME roles, and
blocked PROD-PROVISIONING.md §6 outright.
TWO KNOBS, deliberately separate — Ansible templates a play's `hosts:` BEFORE any host
context exists, so group_vars is unreadable there, while roles run WITH host context:
* which hosts a play RUNS ON — k3s_hosts, k3s_primary_hosts/k3s_secondary_hosts
(k3s.yml's split), vpn_egress_gateway_hosts; each `| default(<dev group>)`, set by -e
only. Follows node-health.yml's established `<name>_hosts | default(dev)` pattern.
* which group a ROLE means by "my primary"/"my servers" — k3s_primary_group,
k3s_servers_group in group_vars/all.yml (dev), overridden in group_vars/k3s_prod.
Follows the k3s_api_host convention already in this repo. No per-run flag.
DEV IS UNCHANGED — the key evidence. --list-hosts/--list-tasks/--syntax-check captured
for all 9 playbooks at HEAD and after: sorted host lists IDENTICAL for all 9, same
primary/secondary split, same 6-play site.yml. (Raw --list-hosts PRINT ORDER varies run
to run; proven to be Ansible's own set ordering by running UNMODIFIED HEAD cilium.yml
four times -> 3,1,2 / 1,3,2 / 1,2,3 / 1,2,3. Hence sorted comparison.) --list-tasks
differs in exactly two files, only by added TAGS annotations and one new assert; no task
reordered, renamed or removed. Var resolution verified per environment with -c local:
dev -> k3s_primary/192.168.1.50/sans .50,.49,127.0.0.1,.51,.52; prod ->
k3s_prod_primary/192.168.2.10/vip .9/sans .10,.9,127.0.0.1,.11,.12.
BREAKS THE SMARTMONTOOLS CIRCULAR DEPENDENCY. node_baseline tasks are now tagged
packages/system/disks, so the package install can run alone:
ansible-playbook playbooks/node-baseline.yml -e k3s_hosts=k3s_prod --tags packages
Skipping is the guard — no disks-tagged task is selected, so the
BLOCKED-pending-disk-decision paths are never templated, let alone passed to mkfs.
Belt-and-braces, a new disks-tagged assert fires first in a FULL run and names §2
explicitly instead of failing obscurely at mkfs. `tags: never` was deliberately NOT used
(it would change the default run).
FOOTGUN FOUND AND FIXED: roles/cilium, cluster_verify and flux_bootstrap all hardcoded
.cache/dev.kubeconfig — the exact file infra/devcontainer/dev.sh exports as $KUBECONFIG.
Once prod became targetable, a prod cilium/verify run would have SILENTLY OVERWRITTEN it,
leaving the operator's kubectl quietly answering from PROD. Now cluster_kubeconfig_name
(dev.kubeconfig -> prod.kubeconfig). Dev path byte-identical.
KNOWN, DOCUMENTED, NOT FIXED HERE: flux-bootstrap.yml retargets but roles/flux_bootstrap
shells out to bootstrap/flux/bootstrap.sh with a hardcoded --path=clusters/dev — a
bootstrap/ subtree change, not a target-group change (§6, cross-referenced to §7).
vpn.egress.gateway.yml is parameterised but prod has no egress group yet and would need
its own vaulted PIA credentials. --check against prod is still impossible until the prod
vault exists — even the packages-only run needs it.
Nothing was run against the dev cluster: --list-hosts/--list-tasks/--syntax-check, plus
debug/assert with -c local, only.
Serves: R-ENV-01, R-ENV-02, R-ENV-03. Task: T-7.1.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
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jakman85andClaude Opus 5
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666cc0d809 |
feat(ansible): prod node inventory + vaulted become; smartmontools into node_baseline
Prod inventory scaffolding for the three bare-metal nodes, and the become posture the operator ruled for production. BECOME: prod does NOT get dev's NOPASSWD sudo. Prod keeps a real sudo boundary and supplies the password to Ansible as an ansible-vault-encrypted `ansible_become_password` in inventory/group_vars/k3s_prod/vault.yml, mirroring the existing hypervisor and proxmox_hosts groups. The decrypting passphrase stays outside the repo (~/.config/home-k3s/ansible-vault-pass), so plays still run unattended with no plaintext secret in git. Committed here: README.md + vault.yml.example only — the operator creates the encrypted vault (`ansible-vault create`), as with every other vaulted group. PACKAGES BELONG IN THE ROLE (operator ruling): smartmontools is now declared in node_baseline_packages, not hand-installed on a node. Drive health tooling is a permanent part of a bare-metal node's baseline — dev nodes are VMs and never needed it. Same click-ops-never principle as the rest of the repo. ADDRESSING: nodes .10/.11/.12, reached DIRECTLY on the LAN (no pfSense NAT hop, unlike dev's 192.168.2.102:225x mapping), so ansible_host is the real node IP. kube-vip control-plane VIP is 192.168.2.9 — deliberately BELOW the nodes and OUTSIDE the Cilium LB pool (.20-.30) so kube-vip and LB-IPAM can never contend for an address. The ingress Gateway VIP (.20) and the LB pool are Flux/cluster-vars concerns and deliberately do not appear in Ansible. BLOCKED-BY-DESIGN: node_baseline_longhorn_device / node_baseline_etcd_device are present but set to an obviously invalid /dev/BLOCKED-... path pending the operator's disk-layout decision (node 1 is a single SATA SSD; the role's /dev/vdb,/dev/vdc defaults are virtio names that do not exist on bare metal). Leaving them unset would silently fall back to those equally-nonexistent defaults — a confusing failure that looks like a wiring bug. This fails just as hard and says exactly why. KNOWN FOLLOW-UP: roles/k3s_server and every node-host playbook hardcode the literal group names k3s_primary/k3s_secondary/k3s_servers, so the k3s_prod_* groups are not selected by them as-is. Harmless now (nothing can accidentally run against prod) but the "same roles, unchanged" reuse R-ENV-02 promises needs the target group parameterized before §6 of PROD-PROVISIONING.md can execute. Documented in hosts.ini and both READMEs. Serves: R-ENV-01, R-ENV-03, R-SEC-01. Task: T-7.1. Gate: MERGE GATE: PASS. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]> |
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jakman85andClaude Opus 4.8
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ef0a735145 |
node_baseline: add cryptsetup (Longhorn 1.12 RequiredPackages) for Debian 13 re-provision
Co-Authored-By: Claude Opus 4.8 <[email protected]> |
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jakman85andClaude Opus 4.8
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af5fc5b25f |
feat(tofu,ansible): SSD-backed etcd disk per k3s node (Phase 1: code + plan)
Interim bridge to stop Longhorn replica-rebuild I/O storms on the shared HDD
Storage pool from starving etcd WAL fsync (crash-looping k3s / flapping the
kube-vip VIP). Adds a small dedicated SSD disk per node for etcd only; Longhorn
stays on HDD. See docs/plans/ssd-etcd-isolation.md.
tofu (infra/tofu):
- New vars etcd_ssd_datastore (default "local-zfs" = rpool/data, Micron 5100
SATA SSD mirror w/ PLP) and etcd_disk_gib (default 16).
- New virtio2 disk block on the SSD datastore per VM: discard=on, cache=none
(honor guest fsync straight to the ZFS ZIL — safe on PLP SSD), iothread=false.
Kept last (ascending interface) so bpg does not reorder virtio0/virtio1.
- Revert the debian_cloud_image resource to the long type name
proxmox_virtual_environment_download_file to match the R2 state: bpg >= 0.111
dropped the cross-type moved{} linkage to the short proxmox_download_file, so
the stale moved block failed EVERY plan with "Resource type mismatch" (broken
on main too). Aligning code to state yields a clean plan with no image
re-download. Short-name migration is deferred to a deliberate `tofu state mv`.
ansible (node_baseline):
- Format /dev/vdc (label k3s-etcd) and mount it at
/var/lib/rancher/k3s/server/db (defaults,noatime; no nofail so a missing etcd
disk fails loudly rather than silently landing etcd on the root HDD) before
k3s starts, so a rebuilt node comes up with etcd isolated on SSD. Data-safe:
filesystem module never reformats an existing fs.
Phase 1 only: non-disruptive. No tofu apply, no node/VM/etcd/Longhorn changes.
tofu plan verified: 0 to add, 3 to change, 0 to destroy — every VM an in-place
disk ADD (virtio2), dev-3 also an in-place memory 16384->24576; no VM replace.
Merge gate green (render==golden included).
Co-Authored-By: Claude Opus 4.8 <[email protected]>
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jakman85andClaude Opus 4.8
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1004c8eae6 |
ansible(node_baseline): don't fail on qemu-guest-agent when no virtio channel (agent disabled in tofu); enable-only
Co-Authored-By: Claude Opus 4.8 <[email protected]> |
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jakman85andClaude Opus 4.8
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a2392a4a43 |
tofu(proxmox): API-only native cloud-init; move node baseline to Ansible node_baseline role
Co-Authored-By: Claude Opus 4.8 <[email protected]> |