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Quickstart documentation

pull/22/head
Smaine Kahlouch 9 years ago
parent
commit
59994a6df1
4 changed files with 91 additions and 25 deletions
  1. 35
      README.md
  2. 41
      environments/test/group_vars/all.yml
  3. 34
      environments/test/inventory.example
  4. 6
      roles/kubernetes/node/defaults/main.yml

35
README.md

@ -18,6 +18,33 @@ Ansible v1.9.x
* [flanneld](https://github.com/coreos/flannel/releases) v0.5.5 * [flanneld](https://github.com/coreos/flannel/releases) v0.5.5
* [docker](https://www.docker.com/) v1.9.1 * [docker](https://www.docker.com/) v1.9.1
Quickstart
-------------------------
The following steps will quickly setup a kubernetes cluster with default configuration.
These defaults are good for a test purposes.
Edit the inventory according to the number of servers
```
[downloader]
10.115.99.1
[kube-master]
10.115.99.31
[kube-node]
10.115.99.32
10.115.99.33
[k8s-cluster:children]
kube-node
kube-master
```
Run the playbook
```
ansible-playbook -i environments/production/inventory cluster.yml -u root
```
Ansible Ansible
------------------------- -------------------------
@ -44,11 +71,10 @@ In node-mesh mode the nodes peers with all the nodes in order to exchange routes
[kube-master] [kube-master]
10.99.0.26 10.99.0.26
[etcd]
10.99.0.26
10.99.0.59
[kube-node] [kube-node]
10.99.0.59
10.99.0.4 10.99.0.4
10.99.0.5 10.99.0.5
10.99.0.36 10.99.0.36
@ -60,6 +86,7 @@ In node-mesh mode the nodes peers with all the nodes in order to exchange routes
10.99.0.5 local_as=xxxxxxxx 10.99.0.5 local_as=xxxxxxxx
[usa] [usa]
10.99.0.59 local_as=xxxxxxxx
10.99.0.36 local_as=xxxxxxxx 10.99.0.36 local_as=xxxxxxxx
10.99.0.37 local_as=xxxxxxxx 10.99.0.37 local_as=xxxxxxxx
@ -69,9 +96,11 @@ kube-master
[paris:vars] [paris:vars]
peers=[{"router_id": "10.99.0.2", "as": "65xxx"}, {"router_id": "10.99.0.3", "as": "65xxx"}] peers=[{"router_id": "10.99.0.2", "as": "65xxx"}, {"router_id": "10.99.0.3", "as": "65xxx"}]
loadbalancer_address="10.99.0.24"
[usa:vars] [usa:vars]
peers=[{"router_id": "10.99.0.34", "as": "65xxx"}, {"router_id": "10.99.0.35", "as": "65xxx"}] peers=[{"router_id": "10.99.0.34", "as": "65xxx"}, {"router_id": "10.99.0.35", "as": "65xxx"}]
loadbalancer_address="10.99.0.44"
``` ```
### Playbook ### Playbook

environments/production/group_vars/all.yml → environments/test/group_vars/all.yml

@ -5,28 +5,31 @@ bin_dir: /usr/local/bin
# Note: ensure that you've enough disk space (about 1G) # Note: ensure that you've enough disk space (about 1G)
local_release_dir: "/tmp/releases" local_release_dir: "/tmp/releases"
# Cluster Loglevel configuration
kube_log_level: 2
# Users to create for basic auth in Kubernetes API via HTTP # Users to create for basic auth in Kubernetes API via HTTP
# kube_users:
# kube:
# pass: changeme
# role: admin
kube_users:
kube:
pass: changeme
role: admin
# root: # root:
# pass: changeme # pass: changeme
# role: admin # role: admin
# Kubernetes cluster name, also will be used as DNS domain # Kubernetes cluster name, also will be used as DNS domain
# cluster_name: cluster.local
cluster_name: cluster.local
# set this variable to calico if needed. keep it empty if flannel is used # set this variable to calico if needed. keep it empty if flannel is used
# kube_network_plugin: calico
kube_network_plugin: calico
# Kubernetes internal network for services, unused block of space. # Kubernetes internal network for services, unused block of space.
# kube_service_addresses: 10.233.0.0/18
kube_service_addresses: 10.233.0.0/18
# internal network. When used, it will assign IP # internal network. When used, it will assign IP
# addresses from this range to individual pods. # addresses from this range to individual pods.
# This network must be unused in your network infrastructure! # This network must be unused in your network infrastructure!
# kube_pods_subnet: 10.233.64.0/18
kube_pods_subnet: 10.233.64.0/18
# internal network total size (optional). This is the prefix of the # internal network total size (optional). This is the prefix of the
# entire network. Must be unused in your environment. # entire network. Must be unused in your environment.
@ -35,17 +38,17 @@ local_release_dir: "/tmp/releases"
# internal network node size allocation (optional). This is the size allocated # internal network node size allocation (optional). This is the size allocated
# to each node on your network. With these defaults you should have # to each node on your network. With these defaults you should have
# room for 4096 nodes with 254 pods per node. # room for 4096 nodes with 254 pods per node.
# kube_network_node_prefix: 24
kube_network_node_prefix: 24
# With calico it is possible to distributed routes with border routers of the datacenter. # With calico it is possible to distributed routes with border routers of the datacenter.
# peer_with_router: false
peer_with_router: false
# Warning : enabling router peering will disable calico's default behavior ('node mesh'). # Warning : enabling router peering will disable calico's default behavior ('node mesh').
# The subnets of each nodes will be distributed by the datacenter router # The subnets of each nodes will be distributed by the datacenter router
# The port the API Server will be listening on. # The port the API Server will be listening on.
# kube_apiserver_ip: "{{ kube_service_addresses|ipaddr('net')|ipaddr(1)|ipaddr('address') }}"
# kube_apiserver_port: 443 # (https)
# kube_apiserver_insecure_port: 8080 # (http)
kube_apiserver_ip: "{{ kube_service_addresses|ipaddr('net')|ipaddr(1)|ipaddr('address') }}"
kube_apiserver_port: 443 # (https)
kube_apiserver_insecure_port: 8080 # (http)
# Internal DNS configuration. # Internal DNS configuration.
# Kubernetes can create and mainatain its own DNS server to resolve service names # Kubernetes can create and mainatain its own DNS server to resolve service names
@ -56,13 +59,13 @@ local_release_dir: "/tmp/releases"
# Kubernetes won't do this for you (yet). # Kubernetes won't do this for you (yet).
# Upstream dns servers used by dnsmasq # Upstream dns servers used by dnsmasq
# upstream_dns_servers:
# - 8.8.8.8
# - 4.4.8.8
upstream_dns_servers:
- 8.8.8.8
- 4.4.8.8
# #
# # Use dns server : https://github.com/ansibl8s/k8s-skydns/blob/master/skydns-README.md # # Use dns server : https://github.com/ansibl8s/k8s-skydns/blob/master/skydns-README.md
# dns_setup: true
# dns_domain: "{{ cluster_name }}"
dns_setup: true
dns_domain: "{{ cluster_name }}"
# #
# # Ip address of the kubernetes dns service # # Ip address of the kubernetes dns service
# dns_server: "{{ kube_service_addresses|ipaddr('net')|ipaddr(253)|ipaddr('address') }}"
dns_server: "{{ kube_service_addresses|ipaddr('net')|ipaddr(253)|ipaddr('address') }}"

34
environments/test/inventory.example

@ -0,0 +1,34 @@
[downloader]
10.99.0.26
[kube-master]
10.99.0.26
10.99.0.27
[kube-node]
10.99.0.27
10.99.0.4
10.99.0.5
10.99.0.36
10.99.0.37
[paris]
10.99.0.26
10.99.0.4 local_as=xxxxxxxx
10.99.0.5 local_as=xxxxxxxx
[usa]
10.99.0.36 local_as=xxxxxxxx
10.99.0.37 local_as=xxxxxxxx
[k8s-cluster:children]
kube-node
kube-master
[paris:vars]
peers=[{"router_id": "10.99.0.2", "as": "65xxx"}, {"router_id": "10.99.0.3", "as": "65xxx"}]
loadbalancer_address="10.99.0.24"
[usa:vars]
peers=[{"router_id": "10.99.0.34", "as": "65xxx"}, {"router_id": "10.99.0.35", "as": "65xxx"}]
loadbalancer_address="10.99.0.44"

6
roles/kubernetes/node/defaults/main.yml

@ -43,6 +43,6 @@ hyperkube_image:
# pick the 10th ip address in the kube_service_addresses range and use that. # pick the 10th ip address in the kube_service_addresses range and use that.
dns_server: "{{ kube_service_addresses|ipaddr('net')|ipaddr(253)|ipaddr('address') }}" dns_server: "{{ kube_service_addresses|ipaddr('net')|ipaddr(253)|ipaddr('address') }}"
# kube_api_runtime_config:
# - extensions/v1beta1/daemonsets=true
# - extensions/v1beta1/deployments=true
kube_api_runtime_config:
- extensions/v1beta1/daemonsets=true
- extensions/v1beta1/deployments=true
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