From a5106c8f47b11487ce96d2a84da93491346461f5 Mon Sep 17 00:00:00 2001
From: VURU <sueleyman.vurucu@amova.eu>
Date: Thu, 11 May 2023 22:25:56 +0200
Subject: [PATCH] update grafana to v 9.5.2 Set fs.inotify.max_user_instances 
 to 4096 by default

---
 ansible/setup/common/tasks/host_config.yml       | 14 ++++++++++++++
 ansible/setup/common/tasks/main.yml              |  6 ++++--
 ansible/setup/common/tasks/set_timezone_utc.yml  |  8 --------
 ansible/setup/stack_observability/tasks/main.yml |  2 +-
 docs/205_stack_core_mimir_prometheus.adoc        |  4 ++++
 docs/902_cheet_sheet_ubuntu.adoc                 | 11 +++++++++++
 6 files changed, 34 insertions(+), 11 deletions(-)
 create mode 100644 ansible/setup/common/tasks/host_config.yml
 delete mode 100644 ansible/setup/common/tasks/set_timezone_utc.yml
 create mode 100644 docs/205_stack_core_mimir_prometheus.adoc

diff --git a/ansible/setup/common/tasks/host_config.yml b/ansible/setup/common/tasks/host_config.yml
new file mode 100644
index 0000000..106a7e9
--- /dev/null
+++ b/ansible/setup/common/tasks/host_config.yml
@@ -0,0 +1,14 @@
+- name: Set timezone to UTC
+  become: true
+  community.general.timezone:
+    name: UTC
+  register: ts
+
+- name: Set Inode settings
+  become: true
+  changed_when: false
+  shell: |
+    if [ $(sysctl fs.inotify.max_user_instances | awk '{print $3}') -lt 4096 ]; then sysctl -w fs.inotify.max_user_instances=4096 ;fi
+    
+- debug:
+    msg: "{{ ts }}"
\ No newline at end of file
diff --git a/ansible/setup/common/tasks/main.yml b/ansible/setup/common/tasks/main.yml
index 2002469..3981b6d 100644
--- a/ansible/setup/common/tasks/main.yml
+++ b/ansible/setup/common/tasks/main.yml
@@ -18,8 +18,8 @@
     import_tasks: install_base_packages.yml
 
 
-  - name: "Set Timezone {{host_name}}"
-    import_tasks: set_timezone_utc.yml
+  - name: "Host config {{host_name}}"
+    import_tasks: host_config.yml
 
 
 
@@ -36,5 +36,7 @@
 
   - name: "copy check config sh to the nodes "
     import_tasks: copy_check_config.yml
+
+
   tags:
     - nodes
diff --git a/ansible/setup/common/tasks/set_timezone_utc.yml b/ansible/setup/common/tasks/set_timezone_utc.yml
deleted file mode 100644
index 4e623c2..0000000
--- a/ansible/setup/common/tasks/set_timezone_utc.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-- name: Set timezone to UTC
-  become: true
-  community.general.timezone:
-    name: UTC
-  register: ts
-
-- debug:
-    msg: "{{ ts }}"
\ No newline at end of file
diff --git a/ansible/setup/stack_observability/tasks/main.yml b/ansible/setup/stack_observability/tasks/main.yml
index 45a10cb..c2e850f 100644
--- a/ansible/setup/stack_observability/tasks/main.yml
+++ b/ansible/setup/stack_observability/tasks/main.yml
@@ -24,7 +24,7 @@
     - docker_build_dir: "/tmp/dockerbuild"
     - nomad_cli_cert: "{{base_cert_dir}}/nomad/nomad-cli.pem"
     - nomad_cli_cert_key: "{{base_cert_dir}}/nomad/nomad-cli-key.pem"
-    - version_grafana: "9.5.1"
+    - version_grafana: "9.5.2"
     - version_grafana_nomadder: "{{version_grafana}}.0"
     - version_grafana_mimir: "2.8.0"
     - version_grafana_loki: "2.8.2"
diff --git a/docs/205_stack_core_mimir_prometheus.adoc b/docs/205_stack_core_mimir_prometheus.adoc
new file mode 100644
index 0000000..9c4542d
--- /dev/null
+++ b/docs/205_stack_core_mimir_prometheus.adoc
@@ -0,0 +1,4 @@
+=== PromQl Basics
+
+==== staleness
+https://www.youtube.com/watch?v=GcTzd2CLH7I&ab_channel=PrometheusMonitoring
diff --git a/docs/902_cheet_sheet_ubuntu.adoc b/docs/902_cheet_sheet_ubuntu.adoc
index f57961a..a50951b 100644
--- a/docs/902_cheet_sheet_ubuntu.adoc
+++ b/docs/902_cheet_sheet_ubuntu.adoc
@@ -45,6 +45,17 @@ a|[source,shell]
 sudo nmap -sT -p- 172.26.73.37
 ----
 
+|Increase the inotify limits
+a|[source,shell]
+----
+#  In case of node logs Error streaming logs: error getting journald fd: Too many open files
+#Find current values
+sysctl fs.inotify
+#Set new value with
+
+sudo sysctl -w fs.inotify.max_user_instances=2048
+----
+[[_205_link_inode,Manage Inode]]https://maestral.app/docs/inotify-limits[Manage Inode]