This topic lists and describes the Dockerfile.nojava file from the Docker demonstration for the Visual COBOL base image.Dockerfile 全体をリストし、Dockerfile に含まれる各コマンドの説明をその後の表にまとめてあります。Dockerfile のリストに示してある行番号は、読みやすくするために追加したものです。付属の Dockerfile には記載されていません。
001 # Copyright (C) Micro Focus 2018. All rights reserved.
002
003 ARG BASE_SUFFIX=
004 FROM microsoft/dotnet-framework${BASE_SUFFIX}
005
006 # PRODUCT_VERSION is product version associated with this Dockerfile
007 # MFLICFILE is the build-arg for the license filename
008 # ACCEPT_CONTAINER_EULA is the build-arg for the accepting the end user license argument
009 # SETUP_EXE is the build-arg name for installer exe to be used
010 # TOOLS_LOC is build-arg name for installation location of the tools
011 ARG PRODUCT_VERSION=a.b.cc
012 ARG MFLICFILE
013 ARG ACCEPT_CONTAINER_EULA=no
014 ARG SETUP_EXE=vcbt_40.exe
015 ARG TOOLS_LOC=c:\\VCTools
016 ARG TMP_INST_DIR=c:\\vc40tmp
017
018 LABEL vendor="Micro Focus" \
019 com.microfocus.name="Visual COBOL" \
020 com.microfocus.version="$PRODUCT_VERSION" \
021 com.microfocus.eula.url="https://supportline.microfocus.com/licensing/agreements.aspx" \
022 com.microfocus.is-base-image="true" \
023
024 # transfer build arguments to environment vars
025 ENV TOOLS_LOC=${TOOLS_LOC} \
026 RMT_DIR="C:\\Program Files (x86)\\Common Files\\SafeNet Sentinel\\Sentinel RMS License Manager\\WinNT"
027
028 # Use cmd.exe, the microsoft/dotnet-framework-build changes this to powershell, so we need to reset
029 SHELL ["cmd", "/S", "/C"]
030
031 # Copy the setup .exe and license to the image
032 COPY ${SETUP_EXE} "${TMP_INST_DIR}\\"
033 COPY ${MFLICFILE} "${TOOLS_LOC}\\"
034
035 # Do the actual installation
036 RUN set TMP_INST_DIR=${TMP_INST_DIR} && \
037 set SETUP_EXE=${SETUP_EXE} && \
038 set ACCEPT_CONTAINER_EULA=${ACCEPT_CONTAINER_EULA} && \
039 cd %TMP_INST_DIR% && start "" /wait %SETUP_EXE% /q "InstallFolder=%TOOLS_LOC%" /l log.txt accepteula=%ACCEPT_CONTAINER_EULA%
040
041 # Check log.txt
042 RUN cd %TMP_INST_DIR% && \
043 findstr /ic:"Exit Code: 0x0" log.txt || (echo "Install failed - error messages in log.txt" && findstr /ic:"error" log.txt && findstr /ic:"Exit Code:" log.txt && exit 1)
044
045 # License the image
046 RUN set TOOLS_LOC=${TOOLS_LOC} && \
047 set MFLICFILE=${MFLICFILE} && \
048 cd %TOOLS_LOC% && \
049 "%RMT_DIR%\\MFLicenseAdmin.exe" -install %MFLICFILE%
050
051 # Cleaup directory
052 RUN set TMP_INST_DIR=${TMP_INST_DIR} && \
053 cd \ && rmdir /S /Q %TMP_INST_DIR%
054
055 # set the default directory to tools directory
056 WORKDIR "${TOOLS_LOC}"
The commands on the lines in this Dockerfile are as follows:
| 行 | 説明 |
|---|---|
| 003 - 004 | Specifies that the base image to use is the official Docker image for .NET Framework on Windows Server 2016 Server Core. |
| 011 - 016 |
docker build コマンドで渡すビルド引数を定義します。
注: Unlike
Dockerfile and
Dockerfile.oraclejava,
Dockerfile.nojava does not need to define any Java-related arguments.
|
| 018 - 022 | 作成するイメージのメタデータ ラベルを指定します。これらのラベルは docker inspect コマンドで照会できます。 注: Unlike
Dockerfile and
Dockerfile.oraclejava,
Dockerfile.nojava does not need to include an entry for
com.microfocus.third_parties.java.
|
| 025 - 026 | この Dockerfile で使用する環境変数を作成します。
注: Unlike
Dockerfile and
Dockerfile.oraclejava,
Dockerfile.nojava does not need to define any Java-related arguments.
|
| 029 |
Specifies that the shell to be used for subsequent instructions is
["cmd", "/S", "/C"].
This is the default for Dockerfiles on Windows but needs to be specified explicitly here because the base image for this Dockerfile is a Microsoft .NET Framework "-build" image, and using that image causes PowerShell to be used as the shell. |
| 032 - 033 | Copies the Visual COBOL installation file into the temporary folder and the Visual COBOL license file into the folder where Visual COBOL is to be installed. |
| 036 - 039 | Run the Visual COBOL installation file specifying parameters to install it silently, into the required directory, creating a log file, and indicating that you have accepted the terms laid out in the license agreement. |
| 042 - 043 | Runs a series of concatenated Windows commands to search the Visual COBOL installation log file for text indicating that the installation failed. If any such text is found no further processing takes place. |
| 046 - 049 | Runs a series of concatenated Windows commands to license Visual COBOL. |
| 052 - 053 | Runs a series of concatenated Windows commands to delete the Visual COBOL installation file and the temporary directory that was used to contain it. |
| 056 | Sets the Docker working directory to be the directory into which Visual COBOL was installed. |