From 0b4168cad4cd046211138bbc2251415ec4af19e6 Mon Sep 17 00:00:00 2001
From: woopstar <andreas@kruger.nu>
Date: Mon, 5 Feb 2018 10:37:36 +0100
Subject: [PATCH] WIP. Adding metrics-server support for K8s version 1.9
---
inventory/group_vars/k8s-cluster.yml | 11 +++++++++++
roles/kubernetes/secrets/files/make-ssl.sh | 2 ++
roles/kubernetes/secrets/tasks/check-certs.yml | 6 +++++-
roles/kubernetes/secrets/tasks/gen_certs_script.yml | 2 ++
.../secrets/tasks/sync_kube_master_certs.yml | 2 +-
5 files changed, 21 insertions(+), 2 deletions(-)
diff --git a/inventory/group_vars/k8s-cluster.yml b/inventory/group_vars/k8s-cluster.yml
index 8f79f3297..e2fe06149 100644
--- a/inventory/group_vars/k8s-cluster.yml
+++ b/inventory/group_vars/k8s-cluster.yml
@@ -192,3 +192,14 @@ persistent_volumes_enabled: false
## See https://github.com/kubernetes-incubator/kubespray/issues/2141
## Set this variable to true to get rid of this issue
volume_cross_zone_attachment: false
+
+## Add options for metrics-server
+#apiserver_custom_flags:
+# - --requestheader-client-ca-file=/etc/kubernetes/ssl/ca.pem
+# - --requestheader-allowed-names=aggregator
+# - "--requestheader-extra-headers-prefix=X-Remote-Extra-"
+# - --requestheader-group-headers=X-Remote-Group
+# - --requestheader-username-headers=X-Remote-User
+# - --enable-aggregator-routing=true
+# - --proxy-client-cert-file=/etc/kubernetes/ssl/aggregator-proxy-client.pem
+# - --proxy-client-key-file=/etc/kubernetes/ssl/aggregator-proxy-client-key.pem
diff --git a/roles/kubernetes/secrets/files/make-ssl.sh b/roles/kubernetes/secrets/files/make-ssl.sh
index 9139ce98f..8cfc0728a 100755
--- a/roles/kubernetes/secrets/files/make-ssl.sh
+++ b/roles/kubernetes/secrets/files/make-ssl.sh
@@ -93,6 +93,8 @@ if [ -n "$MASTERS" ]; then
gen_key_and_cert "kube-scheduler" "/CN=system:kube-scheduler"
# kube-controller-manager
gen_key_and_cert "kube-controller-manager" "/CN=system:kube-controller-manager"
+ # metrics aggregator
+ gen_key_and_cert "aggregator-proxy-client" "/CN=system:aggregator-proxy-client"
for host in $MASTERS; do
cn="${host%%.*}"
diff --git a/roles/kubernetes/secrets/tasks/check-certs.yml b/roles/kubernetes/secrets/tasks/check-certs.yml
index 3870a3e96..782da6863 100644
--- a/roles/kubernetes/secrets/tasks/check-certs.yml
+++ b/roles/kubernetes/secrets/tasks/check-certs.yml
@@ -26,6 +26,8 @@
- kube-scheduler-key.pem
- kube-controller-manager.pem
- kube-controller-manager-key.pem
+ - aggregator-proxy-client.pem
+ - aggregator-proxy-client-key.pem
- admin-{{ inventory_hostname }}.pem
- admin-{{ inventory_hostname }}-key.pem
- node-{{ inventory_hostname }}.pem
@@ -46,6 +48,8 @@
'{{ kube_cert_dir }}/kube-scheduler-key.pem',
'{{ kube_cert_dir }}/kube-controller-manager.pem',
'{{ kube_cert_dir }}/kube-controller-manager-key.pem',
+ '{{ kube_cert_dir }}/aggregator-proxy-client.pem',
+ '{{ kube_cert_dir }}/aggregator-proxy-client-key.pem',
{% for host in groups['kube-master'] %}
'{{ kube_cert_dir }}/admin-{{ host }}.pem'
'{{ kube_cert_dir }}/admin-{{ host }}-key.pem'
@@ -66,7 +70,7 @@
{% set existing_certs = kubecert_master.files|map(attribute='path')|list|sort %}
{% for cert in ['apiserver.pem', 'apiserver-key.pem', 'kube-scheduler.pem',
'kube-scheduler-key.pem', 'kube-controller-manager.pem',
- 'kube-controller-manager-key.pem'] -%}
+ 'kube-controller-manager-key.pem','aggregator-proxy-client.pem','aggregator-proxy-client-key.pem'] -%}
{% set cert_file = "%s/%s.pem"|format(kube_cert_dir, cert) %}
{% if not cert_file in existing_certs -%}
{%- set gen = True -%}
diff --git a/roles/kubernetes/secrets/tasks/gen_certs_script.yml b/roles/kubernetes/secrets/tasks/gen_certs_script.yml
index 619bbe445..9be59fb7b 100644
--- a/roles/kubernetes/secrets/tasks/gen_certs_script.yml
+++ b/roles/kubernetes/secrets/tasks/gen_certs_script.yml
@@ -73,6 +73,8 @@
'kube-scheduler-key.pem',
'kube-controller-manager.pem',
'kube-controller-manager-key.pem',
+ 'aggregator-proxy-client.pem',
+ 'aggregator-proxy-client-key.pem',
{% for node in groups['kube-master'] %}
'admin-{{ node }}.pem',
'admin-{{ node }}-key.pem',
diff --git a/roles/kubernetes/secrets/tasks/sync_kube_master_certs.yml b/roles/kubernetes/secrets/tasks/sync_kube_master_certs.yml
index d54bf2b67..f488cc61b 100644
--- a/roles/kubernetes/secrets/tasks/sync_kube_master_certs.yml
+++ b/roles/kubernetes/secrets/tasks/sync_kube_master_certs.yml
@@ -32,7 +32,7 @@
sync_file_hosts: "{{ groups['kube-master'] }}"
sync_file_is_cert: true
sync_file_owner: kube
- with_items: ["apiserver.pem", "kube-scheduler.pem", "kube-controller-manager.pem"]
+ with_items: ["apiserver.pem", "kube-scheduler.pem", "kube-controller-manager.pem", "aggregator-proxy-client.pem"]
- name: sync_kube_master_certs | Set facts for kube master components sync_file results
set_fact:
--
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