Avoid relying on subject environment-vars

There are so many ways/places they can change values on the host from
one moment to the next.  Yet as written, the value of ansible_env.GOPATH
is really only fixed at "fact gathering" time.  In other words, the
environment variable can change (even during a play), but won't be
noticed until possibly much later.  This can cause very strange things
to happen which aren't easy to debug.

Fix this by using established facts (variables), and continuously
establishing them as environment variables.  This way, if/when a task
fails, the value of the environment will be present w/in the failure
message instead of obscrured by the shell.

Signed-off-by: Chris Evich <cevich@redhat.com>

contrib/test/integration/build/bats.yml

@@ -3,12 +3,12 @@
 - name: clone bats source repo
   git:
     repo: "https://github.com/sstephenson/bats.git"
-    dest: "{{ ansible_env.GOPATH }}/src/github.com/sstephenson/bats"
+    dest: "{{ go_path }}/src/github.com/sstephenson/bats"
 
 - name: install bats
   command: "./install.sh /usr/local"
   args:
-    chdir: "{{ ansible_env.GOPATH }}/src/github.com/sstephenson/bats"
+    chdir: "{{ go_path }}/src/github.com/sstephenson/bats"
 
 - name: link bats
   file:

contrib/test/integration/build/cri-tools.yml

@@ -3,7 +3,7 @@
 - name: clone cri-tools source repo
   git:
     repo: "https://github.com/kubernetes-incubator/cri-tools.git"
-    dest: "{{ ansible_env.GOPATH }}/src/github.com/kubernetes-incubator/cri-tools"
+    dest: "{{ go_path }}/src/github.com/kubernetes-incubator/cri-tools"
     version: "9ff5e8f78a4182ab8d5ba9bcccdda5f338600eab"
 
 - name: install crictl
@@ -11,6 +11,6 @@
 
 - name: link crictl
   file:
-    src: "{{ ansible_env.GOPATH }}/bin/crictl"
+    src: "{{ go_path }}/bin/crictl"
     dest: /usr/bin/crictl
     state: link

contrib/test/integration/build/kubernetes.yml

@@ -3,17 +3,17 @@
 - name: clone kubernetes source repo
   git:
     repo: "https://github.com/runcom/kubernetes.git"
-    dest: "{{ ansible_env.GOPATH }}/src/k8s.io/kubernetes"
+    dest: "{{ go_path }}/src/k8s.io/kubernetes"
     version: "cri-o-patched-1.8"
 
 - name: install etcd
   command: "hack/install-etcd.sh"
   args:
-    chdir: "{{ ansible_env.GOPATH }}/src/k8s.io/kubernetes"
+    chdir: "{{ go_path }}/src/k8s.io/kubernetes"
 
 - name: build kubernetes
   make:
-    chdir: "{{ ansible_env.GOPATH }}/src/k8s.io/kubernetes"
+    chdir: "{{ go_path }}/src/k8s.io/kubernetes"
 
 - name: Add custom cluster service file for the e2e testing
   copy:
@@ -23,7 +23,7 @@
       After=network-online.target
       Wants=network-online.target
       [Service]
-      WorkingDirectory={{ ansible_env.GOPATH }}/src/k8s.io/kubernetes
+      WorkingDirectory={{ go_path }}/src/k8s.io/kubernetes
       ExecStart=/usr/local/bin/createcluster.sh
       User=root
       [Install]
@@ -35,7 +35,7 @@
     content: |
       #!/bin/bash
 
-      export PATH=/usr/local/go/bin:/usr/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/root/bin:{{ ansible_env.GOPATH }}/bin:{{ ansible_env.GOPATH }}/src/k8s.io/kubernetes/third_party/etcd:{{ ansible_env.GOPATH }}/src/k8s.io/kubernetes/_output/local/bin/linux/amd64/
+      export PATH=/usr/local/go/bin:/usr/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/root/bin:{{ go_path }}/bin:{{ go_path }}/src/k8s.io/kubernetes/third_party/etcd:{{ go_path }}/src/k8s.io/kubernetes/_output/local/bin/linux/amd64/
       export CONTAINER_RUNTIME=remote
       export CGROUP_DRIVER=systemd
       export CONTAINER_RUNTIME_ENDPOINT='/var/run/crio.sock --runtime-request-timeout=5m'
@@ -47,17 +47,3 @@
       export KUBE_ENABLE_CLUSTER_DNS=true
       ./hack/local-up-cluster.sh
     mode: "u=rwx,g=rwx,o=x"
-
-- name: Set kubernetes_provider to be local
-  lineinfile:
-    dest: /etc/environment
-    line: 'KUBERNETES_PROVIDER=local'
-    regexp: 'KUBERNETES_PROVIDER='
-    state: present
-
-- name: Set KUBECONFIG
-  lineinfile:
-    dest: /etc/environment
-    line: 'KUBECONFIG=/var/run/kubernetes/admin.kubeconfig'
-    regexp: 'KUBECONFIG='
-    state: present

contrib/test/integration/build/plugins.yml

@@ -3,17 +3,17 @@
 - name: clone plugins source repo
   git:
     repo: "https://github.com/containernetworking/plugins.git"
-    dest: "{{ ansible_env.GOPATH }}/src/github.com/containernetworking/plugins"
+    dest: "{{ go_path }}/src/github.com/containernetworking/plugins"
     version: "dcf7368eeab15e2affc6256f0bb1e84dd46a34de"
 
 - name: build plugins
   command: "./build.sh"
   args:
-    chdir: "{{ ansible_env.GOPATH }}/src/github.com/containernetworking/plugins"
+    chdir: "{{ go_path }}/src/github.com/containernetworking/plugins"
 
 - name: install plugins
   copy:
-    src: "{{ ansible_env.GOPATH }}/src/github.com/containernetworking/plugins/bin/{{ item }}"
+    src: "{{ go_path }}/src/github.com/containernetworking/plugins/bin/{{ item }}"
     dest: "/opt/cni/bin"
     mode: "o=rwx,g=rx,o=rx"
     remote_src: yes
@@ -33,18 +33,18 @@
 - name: clone runcom plugins source repo
   git:
     repo: "https://github.com/runcom/plugins.git"
-    dest: "{{ ansible_env.GOPATH }}/src/github.com/containernetworking/plugins"
+    dest: "{{ go_path }}/src/github.com/containernetworking/plugins"
     version: "custom-bridge"
     force: yes
 
 - name: build plugins
   command: "./build.sh"
   args:
-    chdir: "{{ ansible_env.GOPATH }}/src/github.com/containernetworking/plugins"
+    chdir: "{{ go_path }}/src/github.com/containernetworking/plugins"
 
 - name: install custom bridge
   copy:
-    src: "{{ ansible_env.GOPATH }}/src/github.com/containernetworking/plugins/bin/bridge"
+    src: "{{ go_path }}/src/github.com/containernetworking/plugins/bin/bridge"
     dest: "/opt/cni/bin/bridge-custom"
     mode: "o=rwx,g=rx,o=rx"
     remote_src: yes

contrib/test/integration/build/runc.yml

@@ -3,18 +3,18 @@
 - name: clone runc source repo
   git:
     repo: "https://github.com/opencontainers/runc.git"
-    dest: "{{ ansible_env.GOPATH }}/src/github.com/opencontainers/runc"
+    dest: "{{ go_path }}/src/github.com/opencontainers/runc"
     version: "84a082bfef6f932de921437815355186db37aeb1"
 
 - name: build runc
   make:
     params: BUILDTAGS="seccomp selinux"
-    chdir: "{{ ansible_env.GOPATH }}/src/github.com/opencontainers/runc"
+    chdir: "{{ go_path }}/src/github.com/opencontainers/runc"
 
 - name: install runc
   make:
     target: "install"
-    chdir: "{{ ansible_env.GOPATH }}/src/github.com/opencontainers/runc"
+    chdir: "{{ go_path }}/src/github.com/opencontainers/runc"
 
 - name: link runc
   file:

contrib/test/integration/e2e.yml

@@ -29,7 +29,7 @@
     daemon_reload: yes
 
 - name: wait for the cluster to be running
-  command: "{{ ansible_env.GOPATH }}/src/k8s.io/kubernetes/_output/bin/kubectl get service kubernetes --namespace default"
+  command: "{{ go_path }}/src/k8s.io/kubernetes/_output/bin/kubectl get service kubernetes --namespace default"
   register: kube_poll
   until: kube_poll | succeeded
   retries: 100
@@ -51,10 +51,7 @@
             &> {{ artifacts }}/e2e.log
   # Fix vim syntax hilighting: "
 
-- name: disable SELinux
-  command: setenforce 0
-
 - name: run e2e tests
   shell: "{{ e2e_shell_cmd | regex_replace('\\s+', ' ') }}"
   args:
-    chdir: "{{ ansible_env.GOPATH }}/src/k8s.io/kubernetes"
+    chdir: "{{ go_path }}/src/k8s.io/kubernetes"

contrib/test/integration/golang.yml

@@ -16,28 +16,16 @@
     - gofmt
     - godoc
 
-- name: ensure user profile exists
-  file:
-    path: "{{ ansible_user_dir }}/.profile"
-    state: touch
-
-- name: set up PATH for Go toolchain and built binaries
-  lineinfile:
-    dest: "{{ ansible_user_dir }}/.profile"
-    line: 'PATH={{ ansible_env.PATH }}:{{ ansible_env.GOPATH }}/bin:/usr/local/go/bin'
-    regexp: '^PATH='
-    state: present
-
 - name: set up directories
   file:
-    path: "{{ item }}"
+    path: "{{ go_path }}/{{ item }}"
     state: directory
   with_items:
-    - "{{ ansible_env.GOPATH }}/src/github.com/containernetworking"
-    - "{{ ansible_env.GOPATH }}/src/github.com/kubernetes-incubator"
-    - "{{ ansible_env.GOPATH }}/src/github.com/k8s.io"
-    - "{{ ansible_env.GOPATH }}/src/github.com/sstephenson"
-    - "{{ ansible_env.GOPATH }}/src/github.com/opencontainers"
+    - "src/github.com/containernetworking"
+    - "src/github.com/kubernetes-incubator"
+    - "src/github.com/k8s.io"
+    - "src/github.com/sstephenson"
+    - "src/github.com/opencontainers"
 
 - name: install Go tools and dependencies
   shell: /usr/bin/go get -u "github.com/{{ item }}"

contrib/test/integration/main.yml

@@ -4,6 +4,8 @@
   gather_facts: False  # Requires low-level ansible-dependencies
   tags:
     - always
+  tags:
+    - setup
   tasks:
     - name: Ensure low-level ansible-dependencies are installed
       raw: $(type -P dnf || type -P yum) install -y python2 python2-dnf libselinux-python git rsync
@@ -26,6 +28,7 @@
 - hosts: '{{ subjects | default("localhost") }}'
   vars_files:
     - "{{ playbook_dir }}/vars.yml"
+  environment: '{{ environment_variables }}'
   tags:
     - setup
   tasks:
@@ -54,6 +57,7 @@
 - hosts: '{{ subjects | default("localhost") }}'
   vars_files:
     - "{{ playbook_dir }}/vars.yml"
+  environment: '{{ environment_variables }}'
   tags:
     - integration
     - e2e
@@ -64,6 +68,7 @@
 - hosts: '{{ subjects | default("localhost") }}'
   vars_files:
     - "{{ playbook_dir }}/vars.yml"
+  environment: '{{ environment_variables }}'
   tags:
     - integration
   tasks:
@@ -73,6 +78,7 @@
 - hosts: '{{ subjects | default("localhost") }}'
   vars_files:
     - "{{ playbook_dir }}/vars.yml"
+  environment: '{{ environment_variables }}'
   tags:
     - e2e
   tasks:

contrib/test/integration/system.yml

@@ -116,17 +116,3 @@
 - name: Update the kernel cmdline to include quota support
   command: grubby --update-kernel=ALL --args="rootflags=pquota"
   when: ansible_distribution in ['RedHat', 'CentOS']
-
-- name: Configure the GOPATH environment variable for all users
-  blockinfile:
-    path: /etc/environment
-    block: "GOPATH={{ go_path }}"
-    create: True
-    follow: True
-
-- name: Reset the ansible connection to incorporate /etc/environment changes
-  meta: reset_connection
-
-- name: Refresh facts to incorporate /etc/environment changes
-  setup:
-    gather_subset: network

contrib/test/integration/test.yml

@@ -5,7 +5,7 @@
 
 - name: Make testing output verbose so it can be converted to xunit
   lineinfile:
-    dest: "{{ ansible_env.GOPATH }}/src/k8s.io/kubernetes/hack/make-rules/test.sh"
+    dest: "{{ go_path }}/src/k8s.io/kubernetes/hack/make-rules/test.sh"
     line: ' go test -v "${goflags[@]:+${goflags[@]}}" \'
     regexp: ' go test \"\$'
     state: present
@@ -21,8 +21,8 @@
     state: directory
 
 - name: run integration tests
-  shell: "CGROUP_MANAGER=cgroupfs STORAGE_OPTIONS='--storage-driver=overlay{{ extra_storage_opts | default('') }}' make localintegration >& {{ artifacts }}/testout.txt"
+  shell: "make localintegration >& {{ artifacts }}/testout.txt"
   args:
-    chdir: "{{ ansible_env.GOPATH }}/src/github.com/kubernetes-incubator/cri-o"
+    chdir: "{{ cri_o_dest_path }}"
   async: 5400
   poll: 30

contrib/test/integration/vars.yml

@@ -1,5 +1,23 @@
 ---
 
+# Path to encode into /etc/environment on all hosts
+go_path: "/go"
+
+# Absolute path on control-host where the cri-o source exists
+cri_o_src_path: "{{ playbook_dir }}/../../../"
+
+# Absolute path on subject-host where cri-o source is expected
+cri_o_dest_path: "{{ go_path }}/src/github.com/kubernetes-incubator/cri-o"
+
+# Global environment variables to use for tasks on subject-hosts
+environment_variables:
+    PATH: "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:{{ go_path }}/bin:/usr/local/go/bin"
+    GOPATH: "{{ go_path }}"
+    KUBERNETES_PROVIDER: "local"
+    KUBECONFIG: "/var/run/kubernetes/admin.kubeconfig"
+    CGROUP_MANAGER: "cgroupfs"
+    STORAGE_OPTS: '--storage-driver=overlay{{ extra_storage_opts | default("") }}'
+
 # For results.yml Paths use rsync 'source' conventions
 artifacts: "/tmp/artifacts"  # Base-directory for collection
 crio_integration_filepath: "{{ artifacts }}/testout.txt"