添加 '.dockerignore'

.dockerignore

@@ -0,0 +1,41 @@
+### Java template
+# Compiled class file
+*.class
+# Log file
+*.log
+# BlueJ files
+*.ctxt
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+### Maven template
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+# https://github.com/takari/maven-wrapper#usage-without-binary-jar
+.mvn/wrapper/maven-wrapper.jar
+### Example user template template
+### Example user template
+# IntelliJ project files
+.idea
+*.iml
+out
+gen
+!build
+!default.conf
+!nginx.conf