Hello, I've been able to automate the entire ROS2 and dependency installation process using Ansible. Once that is all done, I'll run the following Ansible task:

  - name: Colcon build
    ansible.builtin.shell: "colcon build"
    args:
      chdir: "/home/{{ansible_user}}/ros2_ws"

That results in an error from Ansible as follows ("navigation" is our package name we're trying to build):

TASK [Colcon build] ***********************************************************************************************
fatal: [172.30.170.32]: FAILED! => {"changed": true, "cmd": "colcon build", "delta": "0:00:02.030637", "end": "2023-05-02 15:24:36.840685", "msg": "non-zero return code", "rc": 1, "start": "2023-05-02 15:24:34.810048", "stderr": "--- stderr: navigation\nCMake Error at CMakeLists.txt:9 (find_package):\n  By not providing \"Findrclcpp.cmake\" in CMAKE_MODULE_PATH this project has\n  asked CMake to find a package configuration file provided by \"rclcpp\", but\n  CMake did not find one.\n\n  Could not find a package configuration file provided by \"rclcpp\" with any\n  of the following names:\n\n    rclcppConfig.cmake\n    rclcpp-config.cmake\n\n  Add the installation prefix of \"rclcpp\" to CMAKE_PREFIX_PATH or set\n  \"rclcpp_DIR\" to a directory containing one of the above files.  If \"rclcpp\"\n  provides a separate development package or SDK, be sure it has been\n  installed.\n\n\n---\nFailed   <<< navigation [0.94s, exited with code 1]", "stderr_lines": ["--- stderr: navigation", "CMake Error at CMakeLists.txt:9 (find_package):", "  By not providing \"Findrclcpp.cmake\" in CMAKE_MODULE_PATH this project has", "  asked CMake to find a package configuration file provided by \"rclcpp\", but", "  CMake did not find one.", "", "  Could not find a package configuration file provided by \"rclcpp\" with any", "  of the following names:", "", "    rclcppConfig.cmake", "    rclcpp-config.cmake", "", "  Add the installation prefix of \"rclcpp\" to CMAKE_PREFIX_PATH or set", "  \"rclcpp_DIR\" to a directory containing one of the above files.  If \"rclcpp\"", "  provides a separate development package or SDK, be sure it has been", "  installed.", "", "", "---", "Failed   <<< navigation [0.94s, exited with code 1]"], "stdout": "Starting >>> navigation\n\nSummary: 0 packages finished [1.22s]\n  1 package failed: navigation\n  1 package had stderr output: navigation", "stdout_lines": ["Starting >>> navigation", "", "Summary: 0 packages finished [1.22s]", "  1 package failed: navigation", "  1 package had stderr output: navigation"]}

PLAY RECAP ********************************************************************************************************
172.30.170.32              : ok=1    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0

However, when running the command manually using the below commands, it appears to work fine.

cd /home/ansible/ros2_ws
colcon build

Has anyone else run into this before? I see no difference in what the commands are supposed to be doing. I first tried the Ansible module "command" before moving to the "shell" module with the same result. Any help would be appreciated.

  - name: Update .bashrc with /opt/ros/<ros_distribution>/setup.bash
    lineinfile:
      path: /home/{{ansible_user}}/.bashrc
      line: source /opt/ros/{{ros2_distribution}}/setup.bash