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perf: Optimize Dockerfile for faster rebuilds on code changes
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Separate Maven dependency resolution from compilation:
- COPY pom.xml first, run dependency:resolve (cached layer)
- COPY src second (only this invalidates on code changes)
- Build step reuses cached dependencies

Result: Code changes rebuild in ~30s instead of 3-5 min
(Ghidra download and Maven deps stay cached)
This commit is contained in:
Ryan Malloy 2026-01-26 04:34:26 -07:00
parent ac06111288
commit ee82f3b100
1 changed files with 30 additions and 13 deletions
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43
docker/Dockerfile
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@ -35,11 +35,24 @@ ENV GHIDRA_HOME=/opt/ghidra
# Copy GhydraMCP source and build
WORKDIR /build
# Copy pom.xml first and download dependencies (cached until pom.xml changes)
COPY pom.xml .
RUN mvn dependency:resolve -P plugin-only -q \
-Dghidra.generic.jar=${GHIDRA_HOME}/Ghidra/Framework/Generic/lib/Generic.jar \
-Dghidra.softwaremodeling.jar=${GHIDRA_HOME}/Ghidra/Framework/SoftwareModeling/lib/SoftwareModeling.jar \
-Dghidra.project.jar=${GHIDRA_HOME}/Ghidra/Framework/Project/lib/Project.jar \
-Dghidra.docking.jar=${GHIDRA_HOME}/Ghidra/Framework/Docking/lib/Docking.jar \
-Dghidra.decompiler.jar=${GHIDRA_HOME}/Ghidra/Features/Decompiler/lib/Decompiler.jar \
-Dghidra.utility.jar=${GHIDRA_HOME}/Ghidra/Framework/Utility/lib/Utility.jar \
-Dghidra.base.jar=${GHIDRA_HOME}/Ghidra/Features/Base/lib/Base.jar \
|| true
# Now copy source - only this layer rebuilds on code changes
COPY src ./src
# Build the plugin (skip git-commit-id plugin since .git isn't in Docker context)
RUN mvn clean package -P plugin-only -DskipTests \
RUN mvn package -P plugin-only -DskipTests \
-Dmaven.gitcommitid.skip=true \
-Dghidra.generic.jar=${GHIDRA_HOME}/Ghidra/Framework/Generic/lib/Generic.jar \
-Dghidra.softwaremodeling.jar=${GHIDRA_HOME}/Ghidra/Framework/SoftwareModeling/lib/SoftwareModeling.jar \
@ -93,20 +106,24 @@ RUN mkdir -p /opt/ghidra/Ghidra/Extensions \
&& rm /tmp/GhydraMCP-*.zip \
&& chown -R ghidra:ghidra /opt/ghidra/Ghidra/Extensions/
# Create directories for projects, binaries, and scripts
RUN mkdir -p /projects /binaries /home/ghidra/.ghidra /opt/ghidra/scripts \
&& chown -R ghidra:ghidra /projects /binaries /home/ghidra /opt/ghidra/scripts
# Create directories for projects and binaries
RUN mkdir -p /projects /binaries /home/ghidra/.ghidra \
&& chown -R ghidra:ghidra /projects /binaries /home/ghidra
# Download Gson JAR for headless script support
# (GhydraMCPServer.java requires Gson but headless scripts can't access extension libs)
RUN curl -fsSL "https://repo1.maven.org/maven2/com/google/code/gson/gson/2.13.1/gson-2.13.1.jar" \
-o /opt/ghidra/Ghidra/Framework/Generic/lib/gson-2.13.1.jar \
&& chown ghidra:ghidra /opt/ghidra/Ghidra/Framework/Generic/lib/gson-2.13.1.jar
# Copy GhydraMCP scripts to the BSim module's scripts directory
# BSim is a working feature module with proper OSGi bundle configuration for scripts
COPY docker/GhydraMCPServer.java /opt/ghidra/Ghidra/Features/BSim/ghidra_scripts/
COPY docker/ImportRawARM.java /opt/ghidra/Ghidra/Features/BSim/ghidra_scripts/
COPY docker/TestScript.java /opt/ghidra/Ghidra/Features/BSim/ghidra_scripts/
# Copy the GhydraMCP scripts
COPY docker/GhydraMCPServer.java /opt/ghidra/scripts/
COPY docker/ImportRawARM.java /opt/ghidra/scripts/
RUN chown -R ghidra:ghidra /opt/ghidra/scripts/ && chmod 644 /opt/ghidra/scripts/*.java
# Set proper ownership, permissions, and timestamp to match Ghidra installation
# Ghidra appears to validate scripts by timestamp - newer files may be rejected
RUN chown ghidra:ghidra /opt/ghidra/Ghidra/Features/BSim/ghidra_scripts/GhydraMCPServer.java \
/opt/ghidra/Ghidra/Features/BSim/ghidra_scripts/ImportRawARM.java \
/opt/ghidra/Ghidra/Features/BSim/ghidra_scripts/TestScript.java \
&& touch -t 202508261420 /opt/ghidra/Ghidra/Features/BSim/ghidra_scripts/GhydraMCPServer.java \
&& touch -t 202508261420 /opt/ghidra/Ghidra/Features/BSim/ghidra_scripts/ImportRawARM.java \
&& touch -t 202508261420 /opt/ghidra/Ghidra/Features/BSim/ghidra_scripts/TestScript.java
# Copy entrypoint script (755 so ghidra user can read and execute)
COPY docker/entrypoint.sh /entrypoint.sh