add calico VXLAN mode, update docs and vars in sample inventory (#5731)
* calico VXLAN mode * check vars if calico backend definedpull/5759/head
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@ -12,55 +12,55 @@ Check if the calico-node container is running
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docker ps | grep calico
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```
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The **calicoctl** command allows to check the status of the network workloads.
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The **calicoctl.sh** is wrap script with configured acces credentials for command calicoctl allows to check the status of the network workloads.
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* Check the status of Calico nodes
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```ShellSession
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calicoctl node status
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calicoctl.sh node status
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```
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or for versions prior to *v1.0.0*:
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```ShellSession
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calicoctl status
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calicoctl.sh status
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```
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* Show the configured network subnet for containers
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```ShellSession
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calicoctl get ippool -o wide
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calicoctl.sh get ippool -o wide
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```
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or for versions prior to *v1.0.0*:
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```ShellSession
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calicoctl pool show
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calicoctl.sh pool show
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```
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* Show the workloads (ip addresses of containers and their located)
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```ShellSession
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calicoctl get workloadEndpoint -o wide
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calicoctl.sh get workloadEndpoint -o wide
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```
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and
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```ShellSession
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calicoctl get hostEndpoint -o wide
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calicoctl.sh get hostEndpoint -o wide
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```
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or for versions prior *v1.0.0*:
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```ShellSession
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calicoctl endpoint show --detail
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calicoctl.sh endpoint show --detail
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```
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## Configuration
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### Optional : Define network backend
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In some cases you may want to define Calico network backend. Allowed values are 'bird', 'gobgp' or 'none'. Bird is a default value.
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In some cases you may want to define Calico network backend. Allowed values are `bird`, `vxlan` or `none`. Bird is a default value.
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To re-define you need to edit the inventory and add a group variable `calico_network_backend`
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@ -199,9 +199,29 @@ To re-define health host please set the following variable in your inventory:
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calico_healthhost: "0.0.0.0"
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```
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## Config encapsulation for cross server traffic
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Calico supports two types of encapsulation: [VXLAN and IP in IP](https://docs.projectcalico.org/v3.11/networking/vxlan-ipip). VXLAN is supported in some environments where IP in IP is not (for example, Azure).
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*IP in IP* and *VXLAN* is mutualy exclusive modes.
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Configure Ip in Ip mode. Possible values is `Always`, `CrossSubnet`, `Never`.
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```yml
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calico_ipip_mode: 'Always'
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```
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Configure VXLAN mode. Possible values is `Always`, `CrossSubnet`, `Never`.
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```yml
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calico_vxlan_mode: 'Never'
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```
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If you use VXLAN mode, BGP networking is not required. You can disable BGP to reduce the moving parts in your cluster by `calico_network_backend: vxlan`
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## Cloud providers configuration
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Please refer to the official documentation, for example [GCE configuration](http://docs.projectcalico.org/v1.5/getting-started/docker/installation/gce) requires a security rule for calico ip-ip tunnels. Note, calico is always configured with ``ipip: true`` if the cloud provider was defined.
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Please refer to the official documentation, for example [GCE configuration](http://docs.projectcalico.org/v1.5/getting-started/docker/installation/gce) requires a security rule for calico ip-ip tunnels. Note, calico is always configured with ``calico_ipip_mode: Always`` if the cloud provider was defined.
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### Optional : Ignore kernel's RPF check setting
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@ -47,6 +47,17 @@
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# Set max typha connections
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# typha_max_connections_lower_limit: 300
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# Set calico network backend: "bird", "vxlan" or "none"
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# bird enable BGP routing, required for ipip mode.
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# calico_network_backend: bird
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# IP in IP and VXLAN is mutualy exclusive modes.
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# set IP in IP encapsulation mode: "Always", "CrossSubnet", "Never"
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# calico_ipip_mode: 'Always'
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# set VXLAN encapsulation mode: "Always", "CrossSubnet", "Never"
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# calico_vxlan_mode: 'Never'
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# If you want to use non default IP_AUTODETECTION_METHOD for calico node set this option to one of:
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# * can-reach=DESTINATION
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# * interface=INTERFACE-REGEX
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@ -9,6 +9,8 @@ calico_ipv4pool_ipip: "Off"
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# Use IP-over-IP encapsulation across hosts
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ipip: true
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ipip_mode: "{{ 'Always' if ipip else 'Never' }}" # change to "CrossSubnet" if you only want ipip encapsulation on traffic going across subnets
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calico_ipip_mode: "{{ ipip_mode }}"
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calico_vxlan_mode: 'Never'
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calico_cert_dir: /etc/calico/certs
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@ -4,10 +4,38 @@
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that:
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- "calico_pool_name is defined"
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- "calico_pool_name is match('^[a-zA-Z0-9-_\\\\.]{2,63}$')"
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- "ipip_mode is defined"
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- "ipip_mode in ['Always', 'CrossSubnet', 'Never']"
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msg: "Check variable definitions seems something is wrong"
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run_once: yes
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msg: "calico_pool_name contains invalid characters"
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- name: "Check calico network backend defined correctly"
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assert:
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that:
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- "calico_network_backend in ['bird', 'vxlan', 'none']"
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msg: "calico network backend is not 'bird', 'vxlan' or 'none'"
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when:
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- calico_network_backend is defined
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- name: "Check ipip and vxlan mode defined correctly"
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assert:
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that:
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- "calico_ipip_mode in ['Always', 'CrossSubnet', 'Never']"
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- "calico_vxlan_mode in ['Always', 'CrossSubnet', 'Never']"
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msg: "calico inter host encapsulation mode is not 'Always', 'CrossSubnet' or 'Never'"
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- name: "Check ipip and vxlan mode if simultaneously enabled"
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assert:
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that:
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- "calico_vxlan_mode in ['Never']"
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msg: "IP in IP and VXLAN mode is mutualy exclusive modes"
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when:
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- "calico_ipip_mode in ['Always', 'CrossSubnet']"
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- name: "Check ipip and vxlan mode if simultaneously enabled"
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assert:
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that:
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- "calico_ipip_mode in ['Never']"
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msg: "IP in IP and VXLAN mode is mutualy exclusive modes"
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when:
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- "calico_vxlan_mode in ['Always', 'CrossSubnet']"
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- name: "Get current version of calico cluster version"
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shell: "{{ bin_dir }}/calicoctl.sh version | grep 'Cluster Version:' | awk '{ print $3}'"
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@ -140,7 +140,8 @@
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},
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"spec": {
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"cidr": "{{ calico_pool_cidr | default(kube_pods_subnet) }}",
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"ipipMode": "{{ ipip_mode }}",
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"ipipMode": "{{ calico_ipip_mode }}",
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"vxlanMode": "{{ calico_vxlan_mode }}",
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"natOutgoing": {{ nat_outgoing|default(false) and not peer_with_router|default(false) }} }} " | {{ bin_dir }}/calicoctl.sh apply -f -
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when:
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- inventory_hostname == groups['kube-master'][0]
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@ -158,7 +159,8 @@
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"spec": {
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"blockSize": "{{ calico_pool_blocksize | default(kube_network_node_prefix) }}",
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"cidr": "{{ calico_pool_cidr | default(kube_pods_subnet) }}",
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"ipipMode": "{{ ipip_mode }}",
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"ipipMode": "{{ calico_ipip_mode }}",
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"vxlanMode": "{{ calico_vxlan_mode }}",
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"natOutgoing": {{ nat_outgoing|default(false) and not peer_with_router|default(false) }} }} " | {{ bin_dir }}/calicoctl.sh apply -f -
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when:
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- inventory_hostname == groups['kube-master'][0]
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@ -15,9 +15,9 @@ data:
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# essential.
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typha_service_name: "calico-typha"
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{% endif %}
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{% if calico_network_backend is defined and calico_network_backend == 'none' %}
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{% if calico_network_backend is defined %}
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cluster_type: "kubespray"
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calico_backend: "none"
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calico_backend: "{{ calico_network_backend }}"
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{% else %}
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cluster_type: "kubespray,bgp"
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calico_backend: "bird"
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