C12s/c12s-kubespray
3
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

Flannel running as pod

Browse source
This commit is contained in:
Smaine Kahlouch 2016-01-09 10:45:50 +01:00 committed by ant31
parent dd46cc64a4
commit 8127e8f8e8
31 changed files with 632 additions and 196 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

61
.gitmodules vendored
View file

@ -1,43 +1,43 @@
[submodule "roles/apps/k8s-kube-ui"]
path = roles/apps/k8s-kube-ui
url = https://github.com/ansibl8s/k8s-kube-ui.git
branch = v1.0
path = roles/apps/k8s-kube-ui
url = https://github.com/ansibl8s/k8s-kube-ui.git
branch = v1.0
[submodule "roles/apps/k8s-kubedns"]
path = roles/apps/k8s-kubedns
url = https://github.com/ansibl8s/k8s-kubedns.git
branch = v1.0
path = roles/apps/k8s-kubedns
url = https://github.com/ansibl8s/k8s-kubedns.git
branch = v1.0
[submodule "roles/apps/k8s-common"]
path = roles/apps/k8s-common
url = https://github.com/ansibl8s/k8s-common.git
branch = v1.0
path = roles/apps/k8s-common
url = https://github.com/ansibl8s/k8s-common.git
branch = v1.0
[submodule "roles/apps/k8s-redis"]
path = roles/apps/k8s-redis
url = https://github.com/ansibl8s/k8s-redis.git
branch = v1.0
path = roles/apps/k8s-redis
url = https://github.com/ansibl8s/k8s-redis.git
branch = v1.0
[submodule "roles/apps/k8s-elasticsearch"]
path = roles/apps/k8s-elasticsearch
url = https://github.com/ansibl8s/k8s-elasticsearch.git
path = roles/apps/k8s-elasticsearch
url = https://github.com/ansibl8s/k8s-elasticsearch.git
[submodule "roles/apps/k8s-fabric8"]
path = roles/apps/k8s-fabric8
url = https://github.com/ansibl8s/k8s-fabric8.git
branch = v1.0
path = roles/apps/k8s-fabric8
url = https://github.com/ansibl8s/k8s-fabric8.git
branch = v1.0
[submodule "roles/apps/k8s-memcached"]
path = roles/apps/k8s-memcached
url = https://github.com/ansibl8s/k8s-memcached.git
branch = v1.0
path = roles/apps/k8s-memcached
url = https://github.com/ansibl8s/k8s-memcached.git
branch = v1.0
[submodule "roles/apps/k8s-postgres"]
path = roles/apps/k8s-postgres
url = https://github.com/ansibl8s/k8s-postgres.git
branch = v1.0
path = roles/apps/k8s-postgres
url = https://github.com/ansibl8s/k8s-postgres.git
branch = v1.0
[submodule "roles/apps/k8s-kubedash"]
path = roles/apps/k8s-kubedash
url = https://github.com/ansibl8s/k8s-kubedash.git
path = roles/apps/k8s-kubedash
url = https://github.com/ansibl8s/k8s-kubedash.git
[submodule "roles/apps/k8s-heapster"]
path = roles/apps/k8s-heapster
url = https://github.com/ansibl8s/k8s-heapster.git
path = roles/apps/k8s-heapster
url = https://github.com/ansibl8s/k8s-heapster.git
[submodule "roles/apps/k8s-influxdb"]
path = roles/apps/k8s-influxdb
url = https://github.com/ansibl8s/k8s-influxdb.git
path = roles/apps/k8s-influxdb
url = https://github.com/ansibl8s/k8s-influxdb.git
[submodule "roles/apps/k8s-kube-logstash"]
path = roles/apps/k8s-kube-logstash
url = https://github.com/ansibl8s/k8s-kube-logstash.git
@ -47,3 +47,6 @@
[submodule "roles/apps/k8s-rabbitmq"]
path = roles/apps/k8s-rabbitmq
url = https://github.com/ansibl8s/k8s-rabbitmq.git
[submodule "roles/apps/k8s-pgbouncer"]
path = roles/apps/k8s-pgbouncer
url = https://github.com/ansibl8s/k8s-pgbouncer.git

57
README.md
View file

@ -8,10 +8,14 @@ This project allows to
- A **set of roles** in order to install applications over the k8s cluster
- A **flexible method** which helps to create new roles for apps.
Linux distributions tested:
* **Debian** Wheezy, Jessie
* **Ubuntu** 14.10, 15.04, 15.10
* **Fedora** 23
* **CentOS** 7 (Currently with flannel only)
### Requirements
Tested on **Debian Wheezy/Jessie** and **Ubuntu** (14.10, 15.04, 15.10).
Should work on **RedHat/Fedora/Centos** platforms (to be tested)
* The target servers must have access to the Internet in order to pull docker imaqes.
* The target servers must have **access to the Internet** in order to pull docker imaqes.
* The firewalls are not managed, you'll need to implement your own rules the way you used to.
in order to avoid any issue during deployment you should **disable your firewall**
* **Copy your ssh keys** to all the servers part of your inventory.
@ -272,6 +276,53 @@ calicoctl pool show
```
calicoctl endpoint show --detail
```
#### Flannel networking
* Flannel configuration file should have been created there
```
cat /run/flannel/subnet.env
FLANNEL_NETWORK=10.233.0.0/18
FLANNEL_SUBNET=10.233.16.1/24
FLANNEL_MTU=1450
FLANNEL_IPMASQ=false
```
* Check if the network interface has been created
```
ip a show dev flannel.1
4: flannel.1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UNKNOWN group default
link/ether e2:f3:a7:0f:bf:cb brd ff:ff:ff:ff:ff:ff
inet 10.233.16.0/18 scope global flannel.1
valid_lft forever preferred_lft forever
inet6 fe80::e0f3:a7ff:fe0f:bfcb/64 scope link
valid_lft forever preferred_lft forever
```
* Docker must be configured with a bridge ip in the flannel subnet.
```
ps aux | grep docker
root 20196 1.7 2.7 1260616 56840 ? Ssl 10:18 0:07 /usr/bin/docker daemon --bip=10.233.16.1/24 --mtu=1450
```
* Try to run a container and check its ip address
```
kubectl run test --image=busybox --command -- tail -f /dev/null
replicationcontroller "test" created
kubectl describe po test-34ozs | grep ^IP
IP: 10.233.16.2
```
```
kubectl exec test-34ozs -- ip a show dev eth0
8: eth0@if9: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1450 qdisc noqueue
link/ether 02:42:0a:e9:2b:03 brd ff:ff:ff:ff:ff:ff
inet 10.233.16.2/24 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::42:aff:fee9:2b03/64 scope link tentative flags 08
valid_lft forever preferred_lft forever
```
Congrats ! now you can walk through [kubernetes basics](http://kubernetes.io/v1.1/basicstutorials.html)

1
roles/apps/k8s-pgbouncer Submodule

@ -0,0 +1 @@
Subproject commit 61c41e80e3da8938c7896c07822c19c060be4491

9
roles/dnsmasq/tasks/main.yml
View file

@ -34,7 +34,7 @@
state: directory
when: inventory_hostname in groups['kube-master']
- name: configure dnsmasq
- name: Write dnsmasq configuration
template:
src: 01-kube-dns.conf.j2
dest: /etc/dnsmasq.d/01-kube-dns.conf
@ -42,15 +42,14 @@
backup: yes
when: inventory_hostname in groups['kube-master']
- name: create dnsmasq pod template
- name: Create dnsmasq pod manifest
template: src=dnsmasq-pod.yml dest=/etc/kubernetes/manifests/dnsmasq-pod.manifest
when: inventory_hostname in groups['kube-master']
- name: Check for dnsmasq port
- name: Check for dnsmasq port (pulling image and running container)
wait_for:
port: 53
delay: 5
timeout: 100
when: inventory_hostname in groups['kube-master']
- name: check resolvconf
@ -67,7 +66,7 @@
line: search {{ [ 'default.svc.' + dns_domain, 'svc.' + dns_domain, dns_domain ] | join(' ') }}
dest: "{{resolvconffile}}"
state: present
insertafter: EOF
insertbefore: BOF
backup: yes
follow: yes

8
roles/docker/tasks/main.yml
View file

@ -20,14 +20,6 @@
{{ ansible_distribution }}-{{ ansible_distribution_version }}
when: ansible_kernel|version_compare(docker_kernel_min_version, "<")
- name: ensure docker requirements packages are installed
action: "{{ docker_package_info.pkg_mgr }}"
args:
name: "{{item}}"
state: latest
update_cache: yes
with_items: docker_package_info.pre_pkgs
when: docker_package_info.pre_pkgs|length > 0
- name: ensure docker repository public key is installed
action: "{{ docker_repo_key_info.pkg_key }}"

4
roles/docker/vars/centos-6.yml
View file

@ -2,10 +2,6 @@ docker_kernel_min_version: '2.6.32-431'
docker_package_info:
pkg_mgr: yum
pre_pkgs:
- epel-release
- curl
- device-mapper-libs
pkgs:
- docker-io

4
roles/docker/vars/debian.yml
View file

@ -2,10 +2,6 @@ docker_kernel_min_version: '3.2'
docker_package_info:
pkg_mgr: apt
pre_pkgs:
- apt-transport-https
- curl
- software-properties-common
pkgs:
- docker-engine

2
roles/docker/vars/fedora-20.yml
View file

@ -2,8 +2,6 @@ docker_kernel_min_version: '0'
docker_package_info:
pkg_mgr: yum
pre_pkgs:
- curl
pkgs:
- docker-io

14
roles/docker/vars/fedora.yml Normal file
View file

@ -0,0 +1,14 @@
docker_kernel_min_version: '0'
docker_package_info:
pkg_mgr: dnf
pkgs:
- docker-io
docker_repo_key_info:
pkg_key: ''
repo_keys: []
docker_repo_info:
pkg_repo: ''
repos: []

2
roles/docker/vars/redhat.yml
View file

@ -2,8 +2,6 @@ docker_kernel_min_version: '0'
docker_package_info:
pkg_mgr: yum
pre_pkgs:
- curl
pkgs:
- docker

8
roles/download/defaults/main.yml
View file

@ -1,7 +1,6 @@
---
local_release_dir: /tmp
flannel_version: 0.5.5
calico_version: v0.13.0
calico_plugin_version: v0.7.0
kube_version: v1.1.3
@ -11,8 +10,6 @@ kubelet_checksum: "62191c66f2d670dd52ddf1d88ef81048977abf1ffaa95ee6333299447eb6a
kube_download_url: "https://storage.googleapis.com/kubernetes-release/release/{{ kube_version }}/bin/linux/amd64"
flannel_download_url: "https://github.com/coreos/flannel/releases/download/v{{ flannel_version }}/flannel-{{ flannel_version }}-linux-amd64.tar.gz"
calico_download_url: "https://github.com/Metaswitch/calico-docker/releases/download/{{calico_version}}/calicoctl"
calico_plugin_download_url: "https://github.com/projectcalico/calico-kubernetes/releases/download/{{calico_plugin_version}}/calico_kubernetes"
@ -26,11 +23,6 @@ downloads:
dest: calico/bin/calico
url: "{{calico_plugin_download_url}}"
- name: flannel
dest: flannel/flannel-{{ flannel_version }}-linux-amd64.tar.gz
url: "{{flannel_download_url}}"
unarchive: yes
- name: kubernetes-kubelet
dest: kubernetes/bin/kubelet
sha256: "{{kubelet_checksum}}"

7
roles/etcd/tasks/main.yml
View file

@ -1,13 +1,12 @@
---
- name: ETCD2 | Stop etcd2 service
- name: Stop etcd2 service
service: name=etcd state=stopped
ignore_errors: yes
- name: ETCD2 | create etcd pod template
- name: Create etcd pod manifest
template: src=etcd-pod.yml dest=/etc/kubernetes/manifests/etcd-pod.manifest
- name: ETCD2 | Check for etcd2 port
- name: Check for etcd2 port (pulling image and running container)
wait_for:
port: 2379
delay: 5
timeout: 100

318
roles/kubernetes/master/files/kubectl_bash_completion.sh
View file

@ -265,6 +265,7 @@ _kubectl_get()
flags_completion=()
flags+=("--all-namespaces")
flags+=("--export")
flags+=("--filename=")
flags_with_completion+=("--filename")
flags_completion+=("__handle_filename_extension_flag json|yaml|yml")
@ -401,10 +402,204 @@ _kubectl_describe()
must_have_one_noun+=("serviceaccount")
}
_kubectl_create_namespace()
{
last_command="kubectl_create_namespace"
commands=()
flags=()
two_word_flags=()
flags_with_completion=()
flags_completion=()
flags+=("--dry-run")
flags+=("--generator=")
flags+=("--output=")
two_word_flags+=("-o")
flags+=("--output-version=")
flags+=("--save-config")
flags+=("--schema-cache-dir=")
flags+=("--validate")
flags+=("--alsologtostderr")
flags+=("--api-version=")
flags+=("--certificate-authority=")
flags+=("--client-certificate=")
flags+=("--client-key=")
flags+=("--cluster=")
flags+=("--context=")
flags+=("--insecure-skip-tls-verify")
flags+=("--kubeconfig=")
flags+=("--log-backtrace-at=")
flags+=("--log-dir=")
flags+=("--log-flush-frequency=")
flags+=("--logtostderr")
flags+=("--match-server-version")
flags+=("--namespace=")
flags+=("--password=")
flags+=("--server=")
two_word_flags+=("-s")
flags+=("--stderrthreshold=")
flags+=("--token=")
flags+=("--user=")
flags+=("--username=")
flags+=("--v=")
flags+=("--vmodule=")
must_have_one_flag=()
must_have_one_noun=()
}
_kubectl_create_secret_docker-registry()
{
last_command="kubectl_create_secret_docker-registry"
commands=()
flags=()
two_word_flags=()
flags_with_completion=()
flags_completion=()
flags+=("--docker-email=")
flags+=("--docker-password=")
flags+=("--docker-server=")
flags+=("--docker-username=")
flags+=("--dry-run")
flags+=("--generator=")
flags+=("--output=")
two_word_flags+=("-o")
flags+=("--output-version=")
flags+=("--save-config")
flags+=("--schema-cache-dir=")
flags+=("--validate")
flags+=("--alsologtostderr")
flags+=("--api-version=")
flags+=("--certificate-authority=")
flags+=("--client-certificate=")
flags+=("--client-key=")
flags+=("--cluster=")
flags+=("--context=")
flags+=("--insecure-skip-tls-verify")
flags+=("--kubeconfig=")
flags+=("--log-backtrace-at=")
flags+=("--log-dir=")
flags+=("--log-flush-frequency=")
flags+=("--logtostderr")
flags+=("--match-server-version")
flags+=("--namespace=")
flags+=("--password=")
flags+=("--server=")
two_word_flags+=("-s")
flags+=("--stderrthreshold=")
flags+=("--token=")
flags+=("--user=")
flags+=("--username=")
flags+=("--v=")
flags+=("--vmodule=")
must_have_one_flag=()
must_have_one_flag+=("--docker-email=")
must_have_one_flag+=("--docker-password=")
must_have_one_flag+=("--docker-username=")
must_have_one_noun=()
}
_kubectl_create_secret_generic()
{
last_command="kubectl_create_secret_generic"
commands=()
flags=()
two_word_flags=()
flags_with_completion=()
flags_completion=()
flags+=("--dry-run")
flags+=("--from-file=")
flags+=("--from-literal=")
flags+=("--generator=")
flags+=("--output=")
two_word_flags+=("-o")
flags+=("--output-version=")
flags+=("--save-config")
flags+=("--schema-cache-dir=")
flags+=("--type=")
flags+=("--validate")
flags+=("--alsologtostderr")
flags+=("--api-version=")
flags+=("--certificate-authority=")
flags+=("--client-certificate=")
flags+=("--client-key=")
flags+=("--cluster=")
flags+=("--context=")
flags+=("--insecure-skip-tls-verify")
flags+=("--kubeconfig=")
flags+=("--log-backtrace-at=")
flags+=("--log-dir=")
flags+=("--log-flush-frequency=")
flags+=("--logtostderr")
flags+=("--match-server-version")
flags+=("--namespace=")
flags+=("--password=")
flags+=("--server=")
two_word_flags+=("-s")
flags+=("--stderrthreshold=")
flags+=("--token=")
flags+=("--user=")
flags+=("--username=")
flags+=("--v=")
flags+=("--vmodule=")
must_have_one_flag=()
must_have_one_noun=()
}
_kubectl_create_secret()
{
last_command="kubectl_create_secret"
commands=()
commands+=("docker-registry")
commands+=("generic")
flags=()
two_word_flags=()
flags_with_completion=()
flags_completion=()
flags+=("--alsologtostderr")
flags+=("--api-version=")
flags+=("--certificate-authority=")
flags+=("--client-certificate=")
flags+=("--client-key=")
flags+=("--cluster=")
flags+=("--context=")
flags+=("--insecure-skip-tls-verify")
flags+=("--kubeconfig=")
flags+=("--log-backtrace-at=")
flags+=("--log-dir=")
flags+=("--log-flush-frequency=")
flags+=("--logtostderr")
flags+=("--match-server-version")
flags+=("--namespace=")
flags+=("--password=")
flags+=("--server=")
two_word_flags+=("-s")
flags+=("--stderrthreshold=")
flags+=("--token=")
flags+=("--user=")
flags+=("--username=")
flags+=("--v=")
flags+=("--vmodule=")
must_have_one_flag=()
must_have_one_noun=()
}
_kubectl_create()
{
last_command="kubectl_create"
commands=()
commands+=("namespace")
commands+=("secret")
flags=()
two_word_flags=()
@ -945,6 +1140,125 @@ _kubectl_scale()
must_have_one_noun=()
}
_kubectl_cordon()
{
last_command="kubectl_cordon"
commands=()
flags=()
two_word_flags=()
flags_with_completion=()
flags_completion=()
flags+=("--alsologtostderr")
flags+=("--api-version=")
flags+=("--certificate-authority=")
flags+=("--client-certificate=")
flags+=("--client-key=")
flags+=("--cluster=")
flags+=("--context=")
flags+=("--insecure-skip-tls-verify")
flags+=("--kubeconfig=")
flags+=("--log-backtrace-at=")
flags+=("--log-dir=")
flags+=("--log-flush-frequency=")
flags+=("--logtostderr")
flags+=("--match-server-version")
flags+=("--namespace=")
flags+=("--password=")
flags+=("--server=")
two_word_flags+=("-s")
flags+=("--stderrthreshold=")
flags+=("--token=")
flags+=("--user=")
flags+=("--username=")
flags+=("--v=")
flags+=("--vmodule=")
must_have_one_flag=()
must_have_one_noun=()
}
_kubectl_drain()
{
last_command="kubectl_drain"
commands=()
flags=()
two_word_flags=()
flags_with_completion=()
flags_completion=()
flags+=("--force")
flags+=("--grace-period=")
flags+=("--alsologtostderr")
flags+=("--api-version=")
flags+=("--certificate-authority=")
flags+=("--client-certificate=")
flags+=("--client-key=")
flags+=("--cluster=")
flags+=("--context=")
flags+=("--insecure-skip-tls-verify")
flags+=("--kubeconfig=")
flags+=("--log-backtrace-at=")
flags+=("--log-dir=")
flags+=("--log-flush-frequency=")
flags+=("--logtostderr")
flags+=("--match-server-version")
flags+=("--namespace=")
flags+=("--password=")
flags+=("--server=")
two_word_flags+=("-s")
flags+=("--stderrthreshold=")
flags+=("--token=")
flags+=("--user=")
flags+=("--username=")
flags+=("--v=")
flags+=("--vmodule=")
must_have_one_flag=()
must_have_one_noun=()
}
_kubectl_uncordon()
{
last_command="kubectl_uncordon"
commands=()
flags=()
two_word_flags=()
flags_with_completion=()
flags_completion=()
flags+=("--alsologtostderr")
flags+=("--api-version=")
flags+=("--certificate-authority=")
flags+=("--client-certificate=")
flags+=("--client-key=")
flags+=("--cluster=")
flags+=("--context=")
flags+=("--insecure-skip-tls-verify")
flags+=("--kubeconfig=")
flags+=("--log-backtrace-at=")
flags+=("--log-dir=")
flags+=("--log-flush-frequency=")
flags+=("--logtostderr")
flags+=("--match-server-version")
flags+=("--namespace=")
flags+=("--password=")
flags+=("--server=")
two_word_flags+=("-s")
flags+=("--stderrthreshold=")
flags+=("--token=")
flags+=("--user=")
flags+=("--username=")
flags+=("--v=")
flags+=("--vmodule=")
must_have_one_flag=()
must_have_one_noun=()
}
_kubectl_attach()
{
last_command="kubectl_attach"
@ -1164,6 +1478,7 @@ _kubectl_run()
two_word_flags+=("-r")
flags+=("--requests=")
flags+=("--restart=")
flags+=("--rm")
flags+=("--save-config")
flags+=("--service-generator=")
flags+=("--service-overrides=")
@ -2045,6 +2360,9 @@ _kubectl()
commands+=("logs")
commands+=("rolling-update")
commands+=("scale")
commands+=("cordon")
commands+=("drain")
commands+=("uncordon")
commands+=("attach")
commands+=("exec")
commands+=("port-forward")

6
roles/kubernetes/node/handlers/main.yml
View file

@ -1,13 +1,13 @@
---
- name: reload systemd
command: systemctl daemon-reload
- name: restart systemd-kubelet
command: /bin/true
notify:
- reload systemd
- restart kubelet
- name: reload systemd
command: systemctl daemon-reload
- name: restart kubelet
service:
name: kubelet

1
roles/kubernetes/node/tasks/install.yml
View file

@ -46,3 +46,4 @@
- name: install | Perms calico plugin binary
file: path=/usr/libexec/kubernetes/kubelet-plugins/net/exec/calico/calico owner=kube mode=0755 state=file
when: kube_network_plugin == "calico"

8
roles/kubernetes/preinstall/defaults/main.yml
View file

@ -3,13 +3,7 @@ common_required_pkgs:
- python-httplib2
- openssl
- curl
debian_required_pkgs:
- python-apt
- python-pip
rh_required_pkgs:
- libselinux-python
- rsync
pypy_version: 2.4.0
python_pypy_url: "https://bitbucket.org/pypy/pypy/downloads/pypy-{{ pypy_version }}.tar.bz2"

43
roles/kubernetes/preinstall/tasks/main.yml
View file

@ -1,4 +1,17 @@
---
- name: gather os specific variables
include_vars: "{{ item }}"
with_first_found:
- files:
- "{{ ansible_distribution|lower }}-{{ ansible_distribution_version|lower|replace('/', '_') }}.yml"
- "{{ ansible_distribution|lower }}-{{ ansible_distribution_release }}.yml"
- "{{ ansible_distribution|lower }}-{{ ansible_distribution_major_version|lower|replace('/', '_') }}.yml"
- "{{ ansible_distribution|lower }}.yml"
- "{{ ansible_os_family|lower }}.yml"
- defaults.yml
paths:
- ../vars
- name: "Identify init system"
shell: >
$(pgrep systemd > /dev/null && systemctl status > /dev/null);
@ -14,27 +27,29 @@
- set_fact:
init_system: "{{ init_system_output.stdout }}"
- name: Install python-apt for Debian distribs
shell: apt-get install -y python-apt
when: ansible_os_family == "Debian"
changed_when: False
- name: Install python-dnf for latest RedHat versions
shell: dnf install -y python-dnf yum
when: ansible_distribution == "Fedora" and
ansible_distribution_major_version > 21
changed_when: False
- name: Install packages requirements
action:
module: "{{ ansible_pkg_mgr }}"
name: "{{ item }}"
state: latest
with_items: common_required_pkgs
with_items: "{{required_pkgs | union(common_required_pkgs)}}"
- name: Install debian packages requirements
apt:
name: "{{ item }}"
state: latest
when: ansible_os_family == "Debian"
with_items: debian_required_pkgs
- name: Install redhat packages requirements
action:
module: "{{ ansible_pkg_mgr }}"
name: "{{ item }}"
state: latest
# Todo : selinux configuration
- name: Set selinux policy to permissive
selinux: policy=targeted state=permissive
when: ansible_os_family == "RedHat"
with_items: rh_required_pkgs
changed_when: False
- include: python-bootstrap.yml
when: ansible_os_family not in [ "Debian", "RedHat" ]

4
roles/kubernetes/preinstall/vars/centos.yml Normal file
View file

@ -0,0 +1,4 @@
required_pkgs:
- epel-release
- libselinux-python
- device-mapper-libs

4
roles/kubernetes/preinstall/vars/debian.yml Normal file
View file

@ -0,0 +1,4 @@
required_pkgs:
- python-apt
- apt-transport-https
- software-properties-common

3
roles/kubernetes/preinstall/vars/fedora.yml Normal file
View file

@ -0,0 +1,3 @@
required_pkgs:
- libselinux-python
- device-mapper-libs

3
roles/kubernetes/preinstall/vars/redhat.yml Normal file
View file

@ -0,0 +1,3 @@
required_pkgs:
- libselinux-python
- device-mapper-libs

40
roles/network_plugin/handlers/main.yml
View file

@ -1,36 +1,30 @@
---
- name : reload systemd
shell: systemctl daemon-reload
- name: restart systemd-calico-node
command: /bin/true
notify:
- reload systemd
- restart calico-node
- name: restart systemd-docker
command: /bin/true
notify:
- reload systemd
- restart docker
- name: delete default docker bridge
command: ip link delete docker0
ignore_errors: yes
notify: restart docker
- name : reload systemd
shell: systemctl daemon-reload
- name: restart calico-node
service:
name: calico-node
state: restarted
- name: restart docker
service: name=docker state=restarted
- name: restart flannel
service: name=flannel state=restarted
notify:
- reload systemd
- stop docker
- delete docker0
- start docker
when: inventory_hostname in groups['kube-node']
- name: stop docker
service: name=docker state=stopped
- name: delete docker0
command: ip link delete docker0
ignore_errors: yes
- name: start docker
service: name=docker state=started
service:
name: docker
state: restarted

18
roles/network_plugin/tasks/calico.yml
View file

@ -1,5 +1,4 @@
---
- name: Calico | Install calicoctl bin
synchronize:
src: "{{ local_release_dir }}/calico/bin/calicoctl"
@ -18,6 +17,10 @@
dest: /usr/bin/calicoctl
state: link
- wait_for:
port: 2379
when: inventory_hostname in groups['kube-master']
- name: Calico | Check if calico network pool has already been configured
uri:
url: "http://127.0.0.1:2379/v2/keys/calico/v1/ipam/v4/pool"
@ -71,3 +74,16 @@
- name: Calico | Enable calico-node
service: name=calico-node enabled=yes state=started
- name: Calico | Disable node mesh
shell: calicoctl bgp node-mesh off
environment:
ETCD_AUTHORITY: "{{ groups['etcd'][0] }}:2379"
when: peer_with_router|default(false) and inventory_hostname in groups['kube-node']
- name: Calico | Configure peering with router(s)
shell: calicoctl node bgp peer add {{ item.router_id }} as {{ item.as }}
environment:
ETCD_AUTHORITY: "{{ groups['etcd'][0] }}:2379"
with_items: peers
when: peer_with_router|default(false) and inventory_hostname in groups['kube-node']

73
roles/network_plugin/tasks/flannel.yml
View file

@ -1,57 +1,34 @@
---
- name: Create flannel user
user: name=flannel shell=/bin/nologin
- name: Install flannel binaries
synchronize:
src: "{{ local_release_dir }}/flannel/bin/flanneld"
dest: "{{ bin_dir }}/flanneld"
archive: no
times: yes
delegate_to: "{{ groups['downloader'][0] }}"
notify:
- restart flannel
- name: Perms flannel binary
file: path={{ bin_dir }}/flanneld owner=flannel mode=0755 state=file
- name: Write flannel.service systemd file
- name: Flannel | Write flannel configuration
template:
src: flannel/systemd-flannel.service.j2
dest: /etc/systemd/system/flannel.service
notify: restart flannel
src: flannel/network.json
dest: /etc/flannel-network.json
backup: yes
when: inventory_hostname in groups['kube-node']
- name: Write docker.service systemd file
- name: Flannel | Create flannel pod manifest
template:
src: flannel/systemd-docker.service.j2
dest: /lib/systemd/system/docker.service
notify: restart docker
src: flannel/flannel-pod.yml
dest: /etc/kubernetes/manifests/flannel-pod.manifest
notify: delete default docker bridge
- name: Set fact for ectcd command conf file location
set_fact:
conf_file: "/tmp/flannel-conf.json"
run_once: true
delegate_to: "{{ groups['kube-master'][0] }}"
- name: Flannel | Wait for flannel subnet.env file presence
wait_for:
path: /run/flannel/subnet.env
delay: 5
- name: Create flannel config file to go in etcd
template: src=flannel/flannel-conf.json.j2 dest={{ conf_file }}
run_once: true
delegate_to: "{{ groups['kube-master'][0] }}"
- name: Get flannel_subnet from subnet.env
shell: cat /run/flannel/subnet.env | awk -F'=' '$1 == "FLANNEL_SUBNET" {print $2}'
register: flannel_subnet_output
changed_when: false
- name: Flannel configuration into etcd
shell: "{{ bin_dir }}/etcdctl set /{{ cluster_name }}/network/config < {{ conf_file }}"
delegate_to: "{{ groups['kube-master'][0] }}"
notify: restart flannel
- set_fact:
flannel_subnet: "{{ flannel_subnet_output.stdout }}"
- name: Clean up the flannel config file
file: path=/tmp/flannel-config.json state=absent
run_once: true
delegate_to: "{{ groups['kube-master'][0] }}"
- name: Get flannel_mtu from subnet.env
shell: cat /run/flannel/subnet.env | awk -F'=' '$1 == "FLANNEL_MTU" {print $2}'
register: flannel_mtu_output
changed_when: false
- name: Launch Flannel
service: name=flannel state=started enabled=yes
notify:
- restart flannel
- name: Enable Docker
service: name=docker enabled=yes state=started
- set_fact:
flannel_mtu: "{{ flannel_mtu_output.stdout }}"

21
roles/network_plugin/tasks/main.yml
View file

@ -7,7 +7,24 @@
- include: flannel.yml
when: kube_network_plugin == "flannel"
- include: calico.yml
when: kube_network_plugin == "calico"
- name: Set docker daemon options
template:
src: docker
dest: "/etc/default/docker"
owner: root
group: root
mode: 0644
notify:
- restart docker
- name: Write docker.service systemd file
template:
src: systemd-docker.service
dest: /lib/systemd/system/docker.service
notify: restart systemd-docker
when: init_system == "systemd"
- meta: flush_handlers
- include: calico.yml
when: kube_network_plugin == "calico"

6
roles/network_plugin/templates/docker Normal file
View file

@ -0,0 +1,6 @@
# Deployed by Ansible
{% if init_system == "sysvinit" and kube_network_plugin == "flannel" and ansible_os_family == "Debian" %}
DOCKER_OPTS="--bip={{ flannel_subnet }} --mtu={{ flannel_mtu }}"
{% elif kube_network_plugin == "flannel" %}
OPTIONS="--bip={{ flannel_subnet }} --mtu={{ flannel_mtu }}"
{% endif %}

46
roles/network_plugin/templates/flannel/flannel-pod.yml Normal file
View file

@ -0,0 +1,46 @@
---
kind: "Pod"
apiVersion: "v1"
metadata:
name: "flannel"
namespace: "kube-system"
labels:
app: "flannel"
version: "v0.1"
spec:
volumes:
- name: "subnetenv"
hostPath:
path: "/run/flannel"
- name: "networkconfig"
hostPath:
path: "/etc/flannel-network.json"
containers:
- name: "flannel-server-helper"
image: "gcr.io/google_containers/flannel-server-helper:0.1"
args:
- "--network-config=/etc/flannel-network.json"
- "--etcd-prefix=/{{ cluster_name }}/network"
- "--etcd-server=http://{{ groups['etcd'][0] }}:2379"
volumeMounts:
- name: "networkconfig"
mountPath: "/etc/flannel-network.json"
imagePullPolicy: "Always"
- name: "flannel-container"
image: "quay.io/coreos/flannel:0.5.5"
command:
- "/bin/sh"
- "-c"
- "/opt/bin/flanneld -etcd-endpoints {% for srv in groups['etcd'] %}http://{{ srv }}:2379{% if not loop.last %},{% endif %}{% endfor %} -etcd-prefix /{{ cluster_name }}/network 1>>/var/log/flannel_server.log 2>&1"
ports:
- hostPort: 10253
containerPort: 10253
resources:
limits:
cpu: "100m"
volumeMounts:
- name: "subnetenv"
mountPath: "/run/flannel"
securityContext:
privileged: true
hostNetwork: true

0
roles/network_plugin/templates/flannel/flannel-conf.json.j2 → roles/network_plugin/templates/flannel/network.json
View file

17
roles/network_plugin/templates/flannel/systemd-docker.service.j2
View file

@ -1,17 +0,0 @@
[Unit]
Description=Docker Application Container Engine
Documentation=http://docs.docker.com
After=network.target docker.socket flannel.service
Requires=docker.socket
[Service]
EnvironmentFile=/run/flannel/subnet.env
EnvironmentFile=-/etc/default/docker
ExecStart=/usr/bin/docker -d -H fd:// --bip=${FLANNEL_SUBNET} --mtu=${FLANNEL_MTU} $DOCKER_OPTS
MountFlags=slave
LimitNOFILE=1048576
LimitNPROC=1048576
LimitCORE=infinity
[Install]
WantedBy=multi-user.target

12
roles/network_plugin/templates/flannel/systemd-flannel.service.j2
View file

@ -1,12 +0,0 @@
[Unit]
Description=Flannel Network Overlay
Documentation=https://coreos.com/flannel/docs/latest
[Service]
EnvironmentFile=/etc/network-environment
ExecStart={{ bin_dir }}/flanneld \
$FLANNEL_ETCD_PREFIX
Restart=on-failure
[Install]
WantedBy=multi-user.target

28
roles/network_plugin/templates/systemd-docker.service Normal file
View file

@ -0,0 +1,28 @@
[Unit]
Description=Docker Application Container Engine
Documentation=http://docs.docker.com
{% if ansible_os_family == "RedHat" %}
After=network.target
Wants=docker-storage-setup.service
{% elif ansible_os_family == "Debian" %}
After=network.target docker.socket
Requires=docker.socket
{% endif %}
[Service]
Type=notify
EnvironmentFile=-/etc/default/docker
Environment=GOTRACEBACK=crash
ExecStart=/usr/bin/docker daemon \
$OPTIONS \
$DOCKER_STORAGE_OPTIONS \
$DOCKER_NETWORK_OPTIONS \
$INSECURE_REGISTRY
LimitNOFILE=1048576
LimitNPROC=1048576
LimitCORE=infinity
MountFlags=slave
TimeoutStartSec=1min
[Install]
WantedBy=multi-user.target