chapter 5 tests

chapter-05/Vagrantfile

@@ -25,6 +25,11 @@ Vagrant.configure("2") do |config|
           ansible.playbook = "playbook.yaml"
           ansible.groups = groups
         end
+        host.vm.provision "test", type: "ansible", run: "never" do |ansible|
+          ansible.limit = "all"
+          ansible.playbook = "test.yaml"
+          ansible.groups = groups
+        end
       end
     end
   end

chapter-05/test.yaml

@@ -0,0 +1,12 @@
+---
+- hosts: remote
+  become: yes
+  pre_tasks:
+    - name: install tests
+      ansible.builtin.copy:
+        src: tests
+        dest: /opt
+        owner: root
+        group: root
+  roles:
+    - test

chapter-05/tests/basic.bats

@@ -0,0 +1,13 @@
+# bats file_tags=host01
+
+setup() {
+  BATS_LIB_PATH=/usr/local/lib/node_modules
+  bats_load_library bats-support
+  bats_load_library bats-assert
+  bats_require_minimum_version 1.5.0
+}
+
+@test 'available commands' {
+  run -0 which docker
+  run -0 which skopeo
+}

chapter-05/tests/build.bats

@@ -0,0 +1,25 @@
+# bats file_tags=host01
+
+setup() {
+  BATS_LIB_PATH=/usr/local/lib/node_modules
+  bats_load_library bats-support
+  bats_load_library bats-assert
+  bats_require_minimum_version 1.5.0
+}
+
+@test 'build docker image' {
+  run -0 /bin/bash -c '\
+    cd /opt/hello
+    docker build -t hello .'
+  run -0 docker images
+  assert_output --partial 'hello'
+  docker run --name hello -d -p 8080:80 hello
+  retry -d 1 -t 30 -- curl http://localhost:8080/
+  run -0 curl http://localhost:8080/
+  assert_output --partial 'Hello World!'
+}
+
+teardown() {
+  docker rm --force hello
+  docker rmi --force hello
+}

chapter-05/tests/nginx.bats

@@ -0,0 +1,29 @@
+# bats file_tags=host01
+
+setup() {
+  BATS_LIB_PATH=/usr/local/lib/node_modules
+  bats_load_library bats-support
+  bats_load_library bats-assert
+  bats_require_minimum_version 1.5.0
+}
+
+@test 'nginx' {
+  docker pull nginx
+  run -0 docker images
+  assert_output --partial 'nginx'
+  docker run --name nginx -d nginx
+  run -0 docker exec nginx /bin/sh -c 'ldd $(which nginx)'
+  assert_output --partial 'libc'
+  JQ_QUERY='.[0].SizeRw'
+  run -0 /bin/bash -c "docker inspect -s nginx | jq ${JQ_QUERY}"
+  assert_output --regexp '^[0-9]+$'
+  JQ_QUERY='.[0].GraphDriver.Data.MergedDir'
+  ROOT=$(docker inspect nginx | jq -r "${JQ_QUERY}")
+  ls ${ROOT}
+  run -0 mount
+  assert_output --partial 'merged'
+}
+
+teardown() {
+  docker rm --force nginx
+}

chapter-05/tests/overlay.bats

@@ -0,0 +1,29 @@
+# bats file_tags=host01
+
+setup() {
+  BATS_LIB_PATH=/usr/local/lib/node_modules
+  bats_load_library bats-support
+  bats_load_library bats-assert
+  bats_require_minimum_version 1.5.0
+}
+
+@test 'overlay filesystem' {
+  mkdir /tmp/{lower,upper,work,mount}
+  echo "hello1" > /tmp/lower/hello1
+  echo "hello2" > /tmp/upper/hello2
+  mount -t overlay -o rw,lowerdir=/tmp/lower,upperdir=/tmp/upper,workdir=/tmp/work overlay /tmp/mount
+  run -0 cat /tmp/mount/hello1
+  assert_output --partial 'hello1'
+  run -0 cat /tmp/mount/hello2
+  assert_output --partial 'hello2'
+  echo "hello3" > /tmp/mount/hello3
+  run -0 ls /tmp/lower
+  refute_output --partial 'hello3'
+  run -0 ls /tmp/upper
+  assert_output --partial 'hello3'
+}
+
+teardown() {
+  umount -f /tmp/mount
+  rm -fr /tmp/{lower,upper,work,mount}    
+}

chapter-05/tests/registry.bats

@@ -0,0 +1,20 @@
+# bats file_tags=host01
+
+setup() {
+  BATS_LIB_PATH=/usr/local/lib/node_modules
+  bats_load_library bats-support
+  bats_load_library bats-assert
+  bats_require_minimum_version 1.5.0
+}
+
+@test 'local registry' {
+  docker pull busybox
+  docker tag busybox registry.local/busybox
+  docker push registry.local/busybox
+  docker pull registry.local/busybox
+}
+
+teardown() {
+  docker rmi --force busybox
+  docker rmi --force registry.local/busybox
+}