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$ cat Dockerfile FROM centos LABEL MAINTAINER="root@t4x.org" ENV name Docker ENTRYPOINT echo "hello, $name" |
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docker build -t yypiaoling/centos-entrypoint-shell . $ docker build -t yypiaoling/centos-entrypoint-shell . Sending build context to Docker daemon 2.048kB Step 1/4 : FROM centos ---> 49f7960eb7e4 Step 2/4 : LABEL MAINTAINER="root@t4x.org" ---> Using cache ---> d821a4302db7 Step 3/4 : ENV name Docker ---> Running in 4a974c805a53 Removing intermediate container 4a974c805a53 ---> 47e2186120f4 Step 4/4 : ENTRYPOINT echo "hello, $name" ---> Running in 32f7e31202fc Removing intermediate container 32f7e31202fc ---> b97c88dfeeb9 Successfully built b97c88dfeeb9 Successfully tagged yypiaoling/centos-entrypoint-shell:latest [vagrant@vmdocker file]$ docker run yypiaoling/centos-entrypoint-shell hello, Docker [vagrant@vmdocker file]$ |
2：
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$ cat Dockerfile FROM centos LABEL MAINTAINER="root@t4x.org" ENV name Docker ENTRYPOINT ["/bin/echo", "hello, $name"] |
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$ docker build -t yypiaoling/centos-entrypoint-exec . Sending build context to Docker daemon 2.048kB Step 1/4 : FROM centos ---> 49f7960eb7e4 Step 2/4 : LABEL MAINTAINER="root@t4x.org" ---> Using cache ---> d821a4302db7 Step 3/4 : ENV name Docker ---> Using cache ---> 47e2186120f4 Step 4/4 : ENTRYPOINT ["/bin/echo", "hello, $name"] ---> Running in 4053cf61c48f Removing intermediate container 4053cf61c48f ---> d1b8ddc01a11 Successfully built d1b8ddc01a11 Successfully tagged yypiaoling/centos-entrypoint-exec:latest $ docker run yypiaoling/centos-entrypoint-exec hello, $name |
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$ cat Dockerfile FROM centos LABEL MAINTAINER="root@t4x.org" ENV name Docker ENTRYPOINT ["/bin/bash", "-c", "/bin/echo hello, $name"] |
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$ docker build -t yypiaoling/centos-entrypoint-exec-new .Sending build context to Docker daemon 2.048kB Step 1/4 : FROM centos ---> 49f7960eb7e4 Step 2/4 : LABEL MAINTAINER="root@t4x.org" ---> Using cache ---> d821a4302db7 Step 3/4 : ENV name Docker ---> Using cache ---> 47e2186120f4 Step 4/4 : ENTRYPOINT ["/bin/bash", "-c", "/bin/echo hello, $name"] ---> Running in c6e3a9c986e5 Removing intermediate container c6e3a9c986e5 ---> f363bfcd850f Successfully built f363bfcd850f Successfully tagged yypiaoling/centos-entrypoint-exec-new:latest |
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$ docker run yypiaoling/centos-entrypoint-exec-new hello, Docker |
错误调试：
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