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--- devplayground [2023/10/17 17:59]
pdonnell [Playing Nice]
+++ devplayground [2023/10/17 19:35] (current)
pdonnell
@@ Line 7: / Line 7: @@
 ===== Machines ====
-^ Name ^ Notes ^
+^ Name                                             ^ Notes            ^
-| [[hardware:senta|senta01.front.sepia.ceph.com]]  | General purpose |
+| [[hardware:senta|senta01.front.sepia.ceph.com]]  | General purpose  |
-| [[hardware:senta|senta02.front.sepia.ceph.com]]  | General purpose |
+| [[hardware:senta|senta02.front.sepia.ceph.com]]  | General purpose  |
-| [[hardware:senta|senta03.front.sepia.ceph.com]]  | General purpose |
+| [[hardware:senta|senta03.front.sepia.ceph.com]]  | General purpose  |
-| [[hardware:vossi|vossi01.front.sepia.ceph.com]]  | General purpose |
+| [[hardware:vossi|vossi01.front.sepia.ceph.com]]  | General purpose  |
-| [[hardware:vossi|vossi04.front.sepia.ceph.com]]  | CephFS Team     |
+| [[hardware:vossi|vossi04.front.sepia.ceph.com]]  | CephFS Team      |
-| [[hardware:vossi|vossi04.front.sepia.ceph.com]]  | RADOS Team      |
+| [[hardware:vossi|vossi06.front.sepia.ceph.com]]  | RADOS Team       |
-| [[hardware:folio|folio02.front.sepia.ceph.com]]  | General purpose |
+| [[hardware:folio|folio02.front.sepia.ceph.com]]  | General purpose  |
+| [[hardware:folio|folio13.front.sepia.ceph.com]]  | General purpose  |
 ==== Playing Nice ====
@@ Line 23: / Line 24: @@
 Many of the developer playground nodes have extra disks for testing Ceph. It's okay to use these for ''vstart'' clusters but it may be more flexible to build LVM volumes on top of these devices so others may use them too.
+==== MOTD ====
+Please use this MOTD for these playground machines:
+<code>
+*******************************************************************************
+                                Welcome!
+      This machine is a Ceph Developer Playground for shared use.  Please
+          see the following wiki document for guidelines and a list of
+                              available machines.
+             https://wiki.sepia.ceph.com/doku.php?id=devplayground
+                           Create support tickets at:
+                     https://tracker.ceph.com/projects/lab
+                                    Thanks!
+*******************************************************************************
+</code>
+==== Configuring CephFS Mounts ====
+The following script can be run to setup CephFS mounts on a new developer playground machines:
+<code>
+#!/bin/bash
+HOST="$1"
+function run {
+  printf '%s\n' "$*" >&2
+  "$@"
+}
+function mssh {
+  run ssh "$HOST" -- "$*"
+}
+mssh sudo mkdir -p -m 755 /etc/ceph
+ssh reesi001.front.sepia.ceph.com 'env CEPH_KEYRING=/etc/ceph/client.sepian.keyring ceph --id sepian config generate-minimal-conf' | mssh sudo tee /etc/ceph/ceph.conf
+mssh sudo chmod 644 /etc/ceph/ceph.conf
+ssh reesi001.front.sepia.ceph.com 'cat /etc/ceph/client.sepian.keyring' | mssh sudo tee /etc/ceph/client.sepian.keyring
+mssh sudo chmod 644 /etc/ceph/client.sepian.keyring
+ssh reesi001.front.sepia.ceph.com 'ceph-authtool /etc/ceph/client.sepian.keyring -n client.sepian -p' | mssh sudo tee /etc/ceph/client.sepian.secret
+mssh sudo chmod 600 /etc/ceph/client.sepian.secret
+function genmount {
+  local secret=$(mssh sudo cat /etc/ceph/client.sepian.secret)
+  # create mountpoint
+  mssh sudo mkdir -p -- "$2"
+  # make the mountpoint directory (shadowed) unwriteable to prevent accidental modification
+  mssh sudo chmod 000 -- "$2"
+  # set it immutable to enforce that even for root
+  mssh sudo chattr +i -- "$2"
+  printf '172.21.2.201,172.21.2.202,172.21.2.203:%s\t%s\tceph\tname=sepian,secret=%s,mds_namespace=%s,_netdev\t0\t2\n' "$1" "$2" "$secret" "$3" | mssh sudo tee -a /etc/fstab
+}
+genmount /teuthology-archive /teuthology teuthology
+genmount / /scratch scratch
+genmount / /postfile postfile
+mssh sudo systemctl daemon-reload
+mssh sudo mount /teuthology
+mssh sudo mount /scratch
+mssh sudo mount /postfile
+mssh sudo ln -s /teuthology /a
+</code>

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