Optimize layers of shenyu-admin Docker image

[TeslaCN]

Related to #4961.

Make sure that:

• You have read the contribution guidelines.
• You submit test cases (unit or integration tests) that back your changes.
• Your local test passed ./mvnw clean install -Dmaven.javadoc.skip=true.

Comparing to ghcr.io/apache/shenyu/admin:e8381465caf02063f01abe578c795d90602f3990
349MB -> 218MB

~> docker images ghcr.io/apache/shenyu/admin:e8381465caf02063f01abe578c795d90602f3990                           
REPOSITORY                    TAG                                        IMAGE ID       CREATED          SIZE
ghcr.io/apache/shenyu/admin   e8381465caf02063f01abe578c795d90602f3990   4b71f7e5f494   37 minutes ago   349MB

~> docker history ghcr.io/apache/shenyu/admin:e8381465caf02063f01abe578c795d90602f3990
IMAGE          CREATED          CREATED BY                                      SIZE      COMMENT
4b71f7e5f494   38 minutes ago   ENTRYPOINT ["/bin/sh" "entrypoint.sh"]          0B        buildkit.dockerfile.v0
<missing>      38 minutes ago   EXPOSE map[9095/tcp:{}]                         0B        buildkit.dockerfile.v0
<missing>      38 minutes ago   WORKDIR /opt/shenyu-admin                       0B        buildkit.dockerfile.v0
<missing>      38 minutes ago   RUN |1 APP_NAME=apache-shenyu-*-admin-bin /b…   1.6kB     buildkit.dockerfile.v0
<missing>      38 minutes ago   COPY docker/entrypoint.sh /opt/shenyu-admin/…   1.6kB     buildkit.dockerfile.v0
<missing>      38 minutes ago   COPY docker/logback.xml /opt/shenyu-admin/co…   1.9kB     buildkit.dockerfile.v0
<missing>      38 minutes ago   RUN |1 APP_NAME=apache-shenyu-*-admin-bin /b…   131MB     buildkit.dockerfile.v0
<missing>      38 minutes ago   ADD target/apache-shenyu-*-admin-bin.tar.gz …   131MB     buildkit.dockerfile.v0
<missing>      38 minutes ago   RUN |1 APP_NAME=apache-shenyu-*-admin-bin /b…   3.38MB    buildkit.dockerfile.v0
<missing>      38 minutes ago   ENV ADMIN_JVM=                                  0B        buildkit.dockerfile.v0
<missing>      38 minutes ago   ENV LOCAL_PATH=/opt/shenyu-admin                0B        buildkit.dockerfile.v0
<missing>      38 minutes ago   ARG APP_NAME                                    0B        buildkit.dockerfile.v0
<missing>      4 years ago      /bin/sh -c set -x  && apk add --no-cache   o…   78.1MB    
<missing>      4 years ago      /bin/sh -c #(nop)  ENV JAVA_ALPINE_VERSION=8…   0B        
<missing>      4 years ago      /bin/sh -c #(nop)  ENV JAVA_VERSION=8u212       0B        
<missing>      4 years ago      /bin/sh -c #(nop)  ENV PATH=/usr/local/sbin:…   0B        
<missing>      4 years ago      /bin/sh -c #(nop)  ENV JAVA_HOME=/usr/lib/jv…   0B        
<missing>      4 years ago      /bin/sh -c {   echo '#!/bin/sh';   echo 'set…   87B       
<missing>      4 years ago      /bin/sh -c #(nop)  ENV LANG=C.UTF-8             0B        
<missing>      4 years ago      /bin/sh -c #(nop)  CMD ["/bin/sh"]              0B        
<missing>      4 years ago      /bin/sh -c #(nop) ADD file:66f49017dd7ba2956…   5.29MB


~> docker images apache/shenyu-admin:latest                                                                     
REPOSITORY            TAG       IMAGE ID       CREATED          SIZE
apache/shenyu-admin   latest    8a49890a92da   40 minutes ago   218MB

~> docker history apache/shenyu-admin:latest                                             
IMAGE          CREATED          CREATED BY                                      SIZE      COMMENT
8a49890a92da   41 minutes ago   /bin/sh -c #(nop)  ENTRYPOINT ["/bin/sh" "en…   0B        
49f4560774a6   41 minutes ago   /bin/sh -c #(nop)  EXPOSE 9095                  0B        
f143cae13d98   41 minutes ago   /bin/sh -c #(nop) WORKDIR /opt/shenyu-admin     0B        
2e295b773d56   41 minutes ago   /bin/sh -c chmod +x ${LOCAL_PATH}/entrypoint…   1.6kB     
469ae86cece9   41 minutes ago   /bin/sh -c #(nop) COPY file:ea99ab97871c0ac0…   1.6kB     
cc574bf57b00   41 minutes ago   /bin/sh -c #(nop) COPY file:e653fe5d05c600c5…   1.9kB     
48957ee51430   41 minutes ago   /bin/sh -c #(nop) COPY dir:4136511d2bbd0bbd0…   131MB     
534d995ec8e0   41 minutes ago   /bin/sh -c #(nop)  ENV ADMIN_JVM=               0B        
bd9f0138c4e7   41 minutes ago   /bin/sh -c #(nop)  ENV LOCAL_PATH=/opt/sheny…   0B        
ff709676b33c   41 minutes ago   /bin/sh -c apk --no-cache add procps            3.38MB    
35b0e5135df0   4 years ago      /bin/sh -c set -x  && apk add --no-cache   o…   78.1MB    
<missing>      4 years ago      /bin/sh -c #(nop)  ENV JAVA_ALPINE_VERSION=8…   0B        
<missing>      4 years ago      /bin/sh -c #(nop)  ENV JAVA_VERSION=8u212       0B        
<missing>      4 years ago      /bin/sh -c #(nop)  ENV PATH=/usr/local/sbin:…   0B        
<missing>      4 years ago      /bin/sh -c #(nop)  ENV JAVA_HOME=/usr/lib/jv…   0B        
<missing>      4 years ago      /bin/sh -c {   echo '#!/bin/sh';   echo 'set…   87B       
<missing>      4 years ago      /bin/sh -c #(nop)  ENV LANG=C.UTF-8             0B        
<missing>      4 years ago      /bin/sh -c #(nop)  CMD ["/bin/sh"]              0B        
<missing>      4 years ago      /bin/sh -c #(nop) ADD file:66f49017dd7ba2956…   5.29MB    

[codecov-commenter]

Codecov Report

Merging #4962 (6485ff9) into master (defb046) will increase coverage by 0.02%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #4962      +/-   ##
============================================
+ Coverage     63.92%   63.94%   +0.02%     
  Complexity     8529     8529              
============================================
  Files          1208     1208              
  Lines         35899    35899              
  Branches       3217     3217              
============================================
+ Hits          22948    22956       +8     
+ Misses        11100    11091       -9     
- Partials       1851     1852       +1     

see 4 files with indirect coverage changes

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