Add docker runner env

.dockerignore

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+/Dockerfile
+/docker-compose*

Dockerfile

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+FROM maven:latest AS builder
+
+COPY . /src
+WORKDIR /src
+
+RUN mvn clean install
+
+FROM tomcat:8.5
+ARG PROJECT_NAME=centralino_brigate
+ARG PROJECT_VERS=0.1.0
+
+RUN cd /usr/local/tomcat/webapps.dist/ \
+ && for FILE in *; do \
+        echo "Symlinking: $FILE -> /usr/local/tomcat/webapps/$FILE"; \
+        ln -s $PWD/$FILE /usr/local/tomcat/webapps/$FILE; \
+    done
+COPY docker/tomcat-users.xml /usr/local/tomcat/conf/
+COPY docker/host-manager/context.xml /usr/local/tomcat/webapps.dist/host-manager/META-INF/context.xml
+COPY docker/manager/context.xml /usr/local/tomcat/webapps.dist/manager/META-INF/context.xml
+COPY --from=builder /src/target/${PROJECT_NAME}-${PROJECT_VERS}.war /usr/local/tomcat/webapps/

docker/host-manager/context.xml

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+<Context antiResourceLocking="false" privileged="true" >
+  <Manager sessionAttributeValueClassNameFilter="java\.lang\.(?:Boolean|Integer|Long|Number|String)|org\.apache\.catalina\.filters\.CsrfPreventionFilter\$LruCache(?:\$1)?|java\.util\.(?:Linked)?HashMap"/>
+</Context>

docker/manager/context.xml

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+<Context antiResourceLocking="false" privileged="true" >
+  <Manager sessionAttributeValueClassNameFilter="java\.lang\.(?:Boolean|Integer|Long|Number|String)|org\.apache\.catalina\.filters\.CsrfPreventionFilter\$LruCache(?:\$1)?|java\.util\.(?:Linked)?HashMap"/>
+</Context>

docker/tomcat-users.xml

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+<?xml version='1.0' encoding='utf-8'?>
+<tomcat-users>
+    <role rolename="admin-gui"/>
+    <user username="unit" password="unit" roles="unit,admin-gui,manager-gui"/>
+</tomcat-users>