setup datadog agent on each host.

- set agent version to 7

ansible-5/roles/datadog.datadog/.circleci/config.yml

@@ -0,0 +1,211 @@
+---
+version: 2.1
+
+commands:
+  dry_run:
+    parameters:
+      version:
+        type: string
+      python:
+        type: string
+    steps:
+      - run: ansible-playbook -i ./ci_test/inventory/ci.ini "./ci_test/install_agent_<<parameters.version>>.yaml" -e 'ansible_python_interpreter=/usr/bin/<<parameters.python>>' --check
+      - run: ansible-playbook -i ./ci_test/inventory/ci.ini "./ci_test/downgrade_to_5.yaml" -e 'ansible_python_interpreter=/usr/bin/<<parameters.python>>' --check
+
+  install_agent_5:
+    parameters:
+      python:
+        type: string
+    steps:
+      - run: ansible-playbook -i ./ci_test/inventory/ci.ini "./ci_test/install_agent_5.yaml" -e 'ansible_python_interpreter=/usr/bin/<<parameters.python>>'
+      - run: dd-agent info || true
+      - run: ps aux | grep -v grep | grep datadog-agent
+
+  install_agent:
+    parameters:
+      version:
+        type: string
+      python:
+        type: string
+    steps:
+      - run: ansible-playbook -i ./ci_test/inventory/ci.ini "./ci_test/install_agent_<<parameters.version>>.yaml" -e 'ansible_python_interpreter=/usr/bin/<<parameters.python>>'
+      - run: datadog-agent version
+
+  test_install_no_manage_config:
+    parameters:
+      version:
+        type: string
+      python:
+        type: string
+    steps:
+      - run: ansible-playbook -i ./ci_test/inventory/ci.ini "./ci_test/install_agent_<<parameters.version>>.yaml" -e '{"ansible_python_interpreter":"/usr/bin/<<parameters.python>>","datadog_manage_config":false}'
+      - run: bash -c '[ -f /etc/datadog-agent/datadog.yaml.example ] || [ -f /etc/dd-agent/datadog.conf.example ]'
+      - run: bash -c '[ ! -f /etc/datadog-agent/datadog.yaml ] && [ ! -f /etc/datadog-agent/system-probe.yaml ] && [ ! -f /etc/datadog-agent/security-agent.yaml ] && [ ! -f /etc/dd-agent/datadog.conf ]'
+
+  downgrade_agent_5_23_0:
+    parameters:
+      python:
+        type: string
+    steps:
+      - run: ansible-playbook -i ./ci_test/inventory/ci.ini "./ci_test/downgrade_to_5.yaml" -e 'ansible_python_interpreter=/usr/bin/<<parameters.python>>'
+      - run: dd-agent info || true
+      - run: ps aux | grep -v grep | grep datadog-agent
+
+  test_agent_install_downgrade:
+    parameters:
+      version:
+        type: string
+      python:
+        type: string
+    steps:
+      - checkout
+      - dry_run:
+          version: "<<parameters.version>>"
+          python: "<<parameters.python>>"
+      - install_agent_5:
+          python: "<<parameters.python>>"
+      - when:
+          condition:
+            not:
+              equal: [<<parameters.version>>, "5"]
+          steps:
+            - install_agent:
+                version: "<<parameters.version>>"
+                python: "<<parameters.python>>"
+      - downgrade_agent_5_23_0:
+          python: "<<parameters.python>>"
+
+  test_agent_install:
+    parameters:
+      version:
+        type: string
+      python:
+        type: string
+    steps:
+      - checkout
+      - install_agent:
+          version: "<<parameters.version>>"
+          python: "<<parameters.python>>"
+
+jobs:
+  ansible_lint:
+    docker:
+      - image: datadog/docker-library:ansible_debian_2_10
+    steps:
+      - checkout
+      - run: pip install ansible-lint
+      - run: ansible-lint -v .
+
+  test_install_downgrade:
+    parameters:
+      ansible_version:
+        type: string
+      agent_version:
+        type: string
+      os:
+        type: string
+      python:
+        type: string
+    docker:
+      - image: datadog/docker-library:ansible_<<parameters.os>>_<<parameters.ansible_version>>
+    steps:
+      - checkout
+      - test_agent_install_downgrade:
+          version: "<<parameters.agent_version>>"
+          python: "<<parameters.python>>"
+
+  test_install:
+    parameters:
+      ansible_version:
+        type: string
+      agent_version:
+        type: string
+      os:
+        type: string
+      python:
+        type: string
+    docker:
+      - image: datadog/docker-library:ansible_<<parameters.os>>_<<parameters.ansible_version>>
+    steps:
+      - checkout
+      - test_agent_install:
+          version: "<<parameters.agent_version>>"
+          python: "<<parameters.python>>"
+
+  test_install_no_manage_config:
+    parameters:
+      ansible_version:
+        type: string
+      agent_version:
+        type: string
+      os:
+        type: string
+      python:
+        type: string
+    docker:
+      - image: datadog/docker-library:ansible_<<parameters.os>>_<<parameters.ansible_version>>
+    steps:
+      - checkout
+      - test_install_no_manage_config:
+          version: "<<parameters.agent_version>>"
+          python: "<<parameters.python>>"
+
+workflows:
+  version: 2
+  test_datadog_role:
+    jobs:
+      - ansible_lint
+      - test_install_downgrade:
+          matrix:
+            parameters:
+              ansible_version: ["2_6", "2_7", "2_8"]
+              agent_version: ["5", "6", "7"]
+              os: ["debian"]
+              python: ["python2", "python3"]
+
+      # Newer debian images only have Pythpn 3 installed
+      - test_install_downgrade:
+          matrix:
+            parameters:
+              ansible_version: ["2_9", "2_10"]
+              agent_version: ["5", "6", "7"]
+              os: ["debian"]
+              python: ["python3"]
+
+      # Newer debian images only have Pythpn 3 installed
+      - test_install_no_manage_config:
+          matrix:
+            parameters:
+              ansible_version: ["2_10"]
+              agent_version: ["5", "7"]
+              os: ["debian"]
+              python: ["python3"]
+
+      # centos = CentOS 7. CentOS <= 7 + Python3 is not supported,
+      # as the yum module is Python2-only.
+      - test_install_downgrade: 
+          matrix:
+            parameters:
+              ansible_version: ["2_6", "2_7", "2_8", "2_9", "2_10"]
+              agent_version: ["5", "6", "7"]
+              os: ["centos"]
+              python: ["python2"]
+
+      # We want to check that the dnf path works with CentOS 8
+      # Newer CentOS images only have Pythpn 3 installed
+      - test_install:
+          matrix:
+            parameters:
+              ansible_version: ["2_8", "2_9", "2_10"]
+              agent_version: ["6", "7"]
+              os: ["centos8"]
+              python: ["python3"]
+
+      # Newer suse images only have Python 3 installed
+      - test_install:
+          matrix:
+            parameters:
+              ansible_version: ["2_8", "2_9", "2_10"]
+              agent_version: ["6", "7"]
+              os: ["suse"]
+              python: ["python3"]