# syntax=docker/dockerfile:1 FROM alpine RUN --mount=type=secret,id=API_KEY,env=API_KEY \ some-command --token-from-env $API_KEY Assuming that the API_KEY environment variable is set in the build environment, you can build this with the following command: ...
以下是一个简化的类图,用于展示Docker容器与环境变量之间的关系。 DockerContainer+create()+start()+stop()+setEnv(variable: String)+getEnv(variable: String)EnvironmentVariable+key: String+value: String 在该类图中,DockerContainer表示一个Docker容器,容器通过setEnv和getEnv方法来设置和获取环境变量。 总结 在Do...
ENV指令还允许使用替代语法ENV <key> <value>,而忽略=。例如: ENVMY_VAR my-value This syntax does not allow for multiple environment-variables to be set in a singleENVinstruction, and can be confusing. For example, the following sets a single environment variable (ONE) with value"TWO= THREE=...
If your application uses environment variables, you can set environment variables in your Docker build using the ENV instruction. ENV FLASK_APP=hello This sets a Linux environment variable we'll need later. Flask, the framework used in this example, uses this variable to start the application. ...
状态图 下面是一个简单的状态图,展示了Dockerfile中设置环境变量的过程: Set_Environment_VariableBuild_ImageRun_Container 在这个状态图中,我们首先设置环境变量,然后构建镜像,最后运行容器。整个过程形成了一个循环,不断地构建和运行容器,以满足不同的需求。
docker-compose.yml version'2'services:php:build:php7-fpmvolumes:-${APP_PATH}:/var/www/app-./logs:/var/www/logsenvironment:TIMEZONE:${TIMEZONE}#[...more.stuff...] php7-fpm/Dockerfile FROMphp:7.0-fpmARGTIMEZONE#[...more.stuff...]ENVTIMEZONE=${TIMEZONE}RUNln-snf/usr/share...
THEENV: ${THEENV} にTHEENV値を指定しない場合、警告がスローされます。 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 $ docker compose up --build WARN[0000] The "THEENV" variable is not set. Defaulting to a blank string. <-- SNIP --> => [envtest 1/2] FROM docker.io/library...
#set environment variable ENV JAVA_HOME /root/jdk1.7.0_80 ENV PATH $JAVA_HOME/bin:$PATH#defineentry point which will be run first when the container starts upENTRYPOINT /root/apache-tomcat-7.0.70/bin/startup.sh&&tail-F /root/apache-tomcat-7.0.70/logs/catalina.out ...
# Set default value for a variable ARG my_var=my_default_value # Set code to run at container run time ENTRYPOINT ["python", "./app/my_script.py", "my_var"] # Expose our port to the world EXPOSE 8000 # Create a volume for data storage VOLUME /my_volume ...
# Set the CPPUTEST_HOME environment variable ENV CPPUTEST_HOME=/home/cpputest # Create and set ...