Add default var role

cluster.yml

@@ -2,8 +2,8 @@
 - hosts: localhost
   gather_facts: False
   roles:
-    - bastion-ssh-config
-  tags: [localhost, bastion]
+    - { role: kargo-defaults}
+    - { role: bastion-ssh-config, tags: ["localhost", "bastion"]}
 
 - hosts: k8s-cluster:etcd:calico-rr
   any_errors_fatal: true
@@ -13,9 +13,8 @@
     # fail. bootstrap-os fixes this on these systems, so in later plays it can be enabled.
     ansible_ssh_pipelining: false
   roles:
-    - bootstrap-os
-  tags:
-    - bootstrap-os
+    - { role: kargo-defaults}
+    - { role: bootstrap-os, tags: bootstrap-os}
 
 - hosts: k8s-cluster:etcd:calico-rr
   any_errors_fatal: true
@@ -26,6 +25,7 @@
 - hosts: k8s-cluster:etcd:calico-rr
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: kernel-upgrade, tags: kernel-upgrade, when: kernel_upgrade is defined and kernel_upgrade }
     - { role: kubernetes/preinstall, tags: preinstall }
     - { role: docker, tags: docker }
@@ -36,47 +36,56 @@
 - hosts: etcd:k8s-cluster:vault
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults, when: "cert_management == 'vault'" }
     - { role: vault, tags: vault, vault_bootstrap: true, when: "cert_management == 'vault'" }
 
 - hosts: etcd:!k8s-cluster
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: etcd, tags: etcd }
 
 - hosts: k8s-cluster
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: etcd, tags: etcd }
 
 - hosts: etcd:k8s-cluster:vault
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: vault, tags: vault, when: "cert_management == 'vault'"}
 
 - hosts: k8s-cluster
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: kubernetes/node, tags: node }
     - { role: network_plugin, tags: network }
 
 - hosts: kube-master
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: kubernetes/master, tags: master }
     - { role: kubernetes-apps/network_plugin, tags: network }
 
 - hosts: calico-rr
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: network_plugin/calico/rr, tags: network }
 
 - hosts: k8s-cluster
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: dnsmasq, when: "dns_mode == 'dnsmasq_kubedns'", tags: dnsmasq }
     - { role: kubernetes/preinstall, when: "dns_mode != 'none' and resolvconf_mode == 'host_resolvconf'", tags: resolvconf }
 
 - hosts: kube-master[0]
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: kubernetes-apps, tags: apps }

inventory/group_vars/calico-rr.yml

-## Required for bootstrap-os/preinstall/download roles and setting facts 
-# Valid bootstrap options (required): ubuntu, coreos, centos, none                                                                          
-bootstrap_os: none
-
-# Directory where the binaries will be installed
-bin_dir: /usr/local/bin
-docker_bin_dir: /usr/bin
-
-# Where the binaries will be downloaded.
-# Note: ensure that you've enough disk space (about 1G)
-local_release_dir: "/tmp/releases"
-# Random shifts for retrying failed ops like pushing/downloading
-retry_stagger: 5
-
-kube_service_addresses: 10.233.0.0/18 
-kube_apiserver_port: 443 # (https)
-kube_apiserver_insecure_port: 8080 # (http)
-
-# DNS configuration.
-# Kubernetes cluster name, also will be used as DNS domain
-cluster_name: cluster.local
-# Subdomains of DNS domain to be resolved via /etc/resolv.conf for hostnet pods
-ndots: 2
-# Can be dnsmasq_kubedns, kubedns or none
-dns_mode: dnsmasq_kubedns
-# Can be docker_dns, host_resolvconf or none
-resolvconf_mode: docker_dns
-# Deploy netchecker app to verify DNS resolve as an HTTP service
-deploy_netchecker: false
-# Ip address of the kubernetes skydns service                                                                                               
-skydns_server: "{{ kube_service_addresses|ipaddr('net')|ipaddr(3)|ipaddr('address') }}"
-dns_server: "{{ kube_service_addresses|ipaddr('net')|ipaddr(2)|ipaddr('address') }}"
-dns_domain: "{{ cluster_name }}"

inventory/group_vars/k8s-cluster.yml

@@ -26,6 +26,8 @@ kube_token_dir: "{{ kube_config_dir }}/tokens"
 # This is where to save basic auth file
 kube_users_dir: "{{ kube_config_dir }}/users"
 
+kube_api_anonymous_auth: false
+
 ## Change this to use another Kubernetes version, e.g. a current beta release
 kube_version: v1.5.3
 

inventory/group_vars/kube-master.yml

-# Kubernetes 1.5 added a new flag to the apiserver to disable anonymous auth. In previos versions, anonymous auth was
-# not implemented. As the new flag defaults to true, we have to explicetely disable it. Change this line if you want the
-# 1.5 default behavior. The flag is actually only added if the used kubernetes version is >= 1.5
-kube_api_anonymous_auth: false
-
-# Kubernetes internal network for services, unused block of space.
-kube_service_addresses: 10.233.0.0/18
-
-kube_version: v1.5.3

reset.yml

@@ -14,4 +14,5 @@
       when: reset_confirmation != "yes"
 
   roles:
+    - { role: kargo-defaults}
     - { role: reset, tags: reset }

inventory/group_vars/etcd.yml → roles/kargo-defaults/defaults/main.yaml

-## Required for bootstrap-os/preinstall/download roles and setting facts 
-# Valid bootstrap options (required): ubuntu, coreos, centos, none                                                                        
+## Required for bootstrap-os/preinstall/download roles and setting facts
+# Valid bootstrap options (required): ubuntu, coreos, centos, none
 bootstrap_os: none
+kube_api_anonymous_auth: false
+
+## Change this to use another Kubernetes version, e.g. a current beta release
+kube_version: v1.5.3
 
 # Directory where the binaries will be installed
 bin_dir: /usr/local/bin
@@ -12,15 +16,6 @@ local_release_dir: "/tmp/releases"
 # Random shifts for retrying failed ops like pushing/downloading
 retry_stagger: 5
 
-# Settings for containerized control plane (etcd/secrets)
-etcd_deployment_type: docker
-cert_management: script
-vault_deployment_type: docker
-
-kube_service_addresses: 10.233.0.0/18 
-kube_apiserver_port: 443 # (https)
-kube_apiserver_insecure_port: 8080 # (http)
-
 # DNS configuration.
 # Kubernetes cluster name, also will be used as DNS domain
 cluster_name: cluster.local
@@ -32,7 +27,87 @@ dns_mode: dnsmasq_kubedns
 resolvconf_mode: docker_dns
 # Deploy netchecker app to verify DNS resolve as an HTTP service
 deploy_netchecker: false
-# Ip address of the kubernetes skydns service                                                                                               
+# Ip address of the kubernetes skydns service
 skydns_server: "{{ kube_service_addresses|ipaddr('net')|ipaddr(3)|ipaddr('address') }}"
 dns_server: "{{ kube_service_addresses|ipaddr('net')|ipaddr(2)|ipaddr('address') }}"
 dns_domain: "{{ cluster_name }}"
+
+# Kubernetes configuration dirs and system namespace.
+# Those are where all the additional config stuff goes
+# the kubernetes normally puts in /srv/kubernets.
+# This puts them in a sane location and namespace.
+# Editting those values will almost surely break something.
+kube_config_dir: /etc/kubernetes
+kube_script_dir: "{{ bin_dir }}/kubernetes-scripts"
+kube_manifest_dir: "{{ kube_config_dir }}/manifests"
+system_namespace: kube-system
+
+# Logging directory (sysvinit systems)
+kube_log_dir: "/var/log/kubernetes"
+
+# This is where all the cert scripts and certs will be located
+kube_cert_dir: "{{ kube_config_dir }}/ssl"
+
+# This is where all of the bearer tokens will be stored
+kube_token_dir: "{{ kube_config_dir }}/tokens"
+
+# This is where to save basic auth file
+kube_users_dir: "{{ kube_config_dir }}/users"
+
+
+# This is the group that the cert creation scripts chgrp the
+# cert files to. Not really changable...
+kube_cert_group: kube-cert
+
+# Cluster Loglevel configuration
+kube_log_level: 2
+
+# Users to create for basic auth in Kubernetes API via HTTP
+kube_api_pwd: "changeme"
+kube_users:
+  kube:
+    pass: "{{kube_api_pwd}}"
+    role: admin
+  root:
+    pass: "{{kube_api_pwd}}"
+    role: admin
+
+# Choose network plugin (calico, weave or flannel)
+# Can also be set to 'cloud', which lets the cloud provider setup appropriate routing
+kube_network_plugin: calico
+
+# Kubernetes internal network for services, unused block of space.
+kube_service_addresses: 10.233.0.0/18
+
+# internal network. When used, it will assign IP
+# addresses from this range to individual pods.
+# This network must be unused in your network infrastructure!
+kube_pods_subnet: 10.233.64.0/18
+
+# internal network node size allocation (optional). This is the size allocated
+# to each node on your network.  With these defaults you should have
+# room for 4096 nodes with 254 pods per node.
+kube_network_node_prefix: 24
+
+# 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)
+
+# Path used to store Docker data
+docker_daemon_graph: "/var/lib/docker"
+
+## A string of extra options to pass to the docker daemon.
+## This string should be exactly as you wish it to appear.
+## An obvious use case is allowing insecure-registry access
+## to self hosted registries like so:
+docker_options: "--insecure-registry={{ kube_service_addresses }} --graph={{ docker_daemon_graph }} --iptables=false"
+
+# Settings for containerized control plane (etcd/kubelet/secrets)
+etcd_deployment_type: docker
+kubelet_deployment_type: docker
+cert_management: script
+vault_deployment_type: docker
+
+# K8s image pull policy (imagePullPolicy)
+k8s_image_pull_policy: IfNotPresent

roles/kargo-defaults/tasks/main.yaml

+- name: Configure defaults
+  debug:
+    msg: "Check roles/kargo-defaults/defaults/main.yml"
+  tags:
+    - always

upgrade-cluster.yml

@@ -2,8 +2,8 @@
 - hosts: localhost
   gather_facts: False
   roles:
-    - bastion-ssh-config
-  tags: [localhost, bastion]
+    - { role: kargo-defaults}
+    - { role: bastion-ssh-config, tags: ["localhost", "bastion"]}
 
 - hosts: k8s-cluster:etcd:calico-rr
   any_errors_fatal: true
@@ -13,9 +13,8 @@
     # fail. bootstrap-os fixes this on these systems, so in later plays it can be enabled.
     ansible_ssh_pipelining: false
   roles:
-    - bootstrap-os
-  tags:
-    - bootstrap-os
+    - { role: kargo-defaults}
+    - { role: bootstrap-os, tags: bootstrap-os}
 
 - hosts: k8s-cluster:etcd:calico-rr
   any_errors_fatal: true
@@ -26,6 +25,7 @@
 - hosts: k8s-cluster:etcd:calico-rr
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: kernel-upgrade, tags: kernel-upgrade, when: kernel_upgrade is defined and kernel_upgrade }
     - { role: kubernetes/preinstall, tags: preinstall }
     - { role: docker, tags: docker }
@@ -36,21 +36,25 @@
 - hosts: etcd:k8s-cluster:vault
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults, when: "cert_management == 'vault'" }
     - { role: vault, tags: vault, vault_bootstrap: true, when: "cert_management == 'vault'" }
 
 - hosts: etcd:!k8s-cluster
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: etcd, tags: etcd }
 
 - hosts: k8s-cluster
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: etcd, tags: etcd }
 
 - hosts: etcd:k8s-cluster:vault
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults, when: "cert_management == 'vault'"}}
     - { role: vault, tags: vault, when: "cert_management == 'vault'"}
 
 #Handle upgrades to master components first to maintain backwards compat.
@@ -58,6 +62,7 @@
   any_errors_fatal: true
   serial: 1
   roles:
+    - { role: kargo-defaults}
     - { role: upgrade/pre-upgrade, tags: pre-upgrade }
     - { role: kubernetes/node, tags: node }
     - { role: kubernetes/master, tags: master }
@@ -69,6 +74,7 @@
   any_errors_fatal: true
   serial: "{{ serial | default('20%') }}"
   roles:
+    - { role: kargo-defaults}
     - { role: upgrade/pre-upgrade, tags: pre-upgrade }
     - { role: kubernetes/node, tags: node }
     - { role: network_plugin, tags: network }
@@ -78,15 +84,18 @@
 - hosts: calico-rr
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: network_plugin/calico/rr, tags: network }
 
 - hosts: k8s-cluster
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: dnsmasq, when: "dns_mode == 'dnsmasq_kubedns'", tags: dnsmasq }
     - { role: kubernetes/preinstall, when: "dns_mode != 'none' and resolvconf_mode == 'host_resolvconf'", tags: resolvconf }
 
 - hosts: kube-master[0]
   any_errors_fatal: true
   roles:
+    - { role: kargo-defaults}
     - { role: kubernetes-apps, tags: apps }