From b51a07af249aa6f6e0b28a0433b1506e18d69219 Mon Sep 17 00:00:00 2001
From: Manuel Bentele
Date: Thu, 29 Oct 2020 18:35:36 +0100
Subject: [BUILD] add CMake support to build docker images based on Ubuntu
 20.04

---
 cmake/DockerImage.cmake | 25 +++++++++++++++++++++++++
 cmake/FindDocker.cmake  | 20 ++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 cmake/DockerImage.cmake
 create mode 100644 cmake/FindDocker.cmake

(limited to 'cmake')

diff --git a/cmake/DockerImage.cmake b/cmake/DockerImage.cmake
new file mode 100644
index 0000000..54751e4
--- /dev/null
+++ b/cmake/DockerImage.cmake
@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2020 Manuel Bentele <development@manuel-bentele.de>
+#
+
+# macro to build a docker image based on a provided Dockerfile and an installation package
+macro(add_docker_image TARGET_NAME DOCKER_IMAGE DOCKER_FILE DOCKER_TAG PACKAGE_FILE BUILD_DIR)
+    get_filename_component(PACKAGE_FILE_PATH ${PACKAGE_FILE} PATH)
+    get_filename_component(PACKAGE_FILE_NAME ${PACKAGE_FILE} NAME)
+
+    # create a pseudo target to do packaging before docker image is built
+    add_custom_target(package_docker
+                      COMMAND ${CMAKE_COMMAND} --build ${CMAKE_BINARY_DIR} --target package
+                      VERBATIM)
+
+    # commands and target to build docker image
+    add_custom_command(OUTPUT ${DOCKER_IMAGE}
+                       COMMAND docker image build -t ${DOCKER_TAG} --file ${DOCKER_FILE} --build-arg DNBD3_PACKAGE_FILE_NAME=${PACKAGE_FILE_NAME} ${BUILD_DIR}
+                       COMMAND docker image save -o ${DOCKER_IMAGE} ${DOCKER_TAG}
+                       COMMAND docker image rm ${DOCKER_TAG}
+                       DEPENDS ${DOCKER_FILE}
+                               package_docker)
+    add_custom_target(${TARGET_NAME}
+                      DEPENDS ${DOCKER_IMAGE})    
+endmacro(add_docker_image TARGET_NAME DOCKER_IMAGE DOCKER_FILE PACKAGE_FILE)
diff --git a/cmake/FindDocker.cmake b/cmake/FindDocker.cmake
new file mode 100644
index 0000000..ef3046d
--- /dev/null
+++ b/cmake/FindDocker.cmake
@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2020 Manuel Bentele <development@manuel-bentele.de>
+#
+
+find_program(Docker_EXECUTABLE NAMES docker)
+
+if(Docker_EXECUTABLE)
+    execute_process(COMMAND docker version --format "{{.Server.Version}}"
+                    OUTPUT_VARIABLE Docker_VERSION
+                    OUTPUT_STRIP_TRAILING_WHITESPACE)
+endif(Docker_EXECUTABLE)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Docker
+                                  FOUND_VAR Docker_FOUND
+                                  REQUIRED_VARS Docker_EXECUTABLE
+                                  VERSION_VAR Docker_VERSION
+                                  FAIL_MESSAGE "Docker is not available! Please install docker to build and run containers!")
+
-- 
cgit v1.2.3-55-g7522