6 use multi stage builds to fetch cgate server #7
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WalkthroughThe pull request introduces significant changes to the Dockerfile and related files for the CGate application. The Dockerfile now employs a multi-stage build process, switching the base image to Changes
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Actionable comments posted: 6
🧹 Outside diff range and nitpick comments (3)
README.md (3)
78-78: Approved: New Development section addedThe addition of a Development section is valuable for developers working with the CGate Server. It aligns with the PR objective of improving documentation.
Consider maintaining consistency in header styles throughout the document. Currently, both setext-style (underlined) and atx-style (# prefixed) headers are used. Choose one style and apply it consistently for better readability.
🧰 Tools
🪛 Markdownlint
78-78: Expected: setext; Actual: atx
Heading style(MD003, heading-style)
80-99: Approved: Valuable information about downloading CGate serverThe new subsection provides crucial information about downloading the CGate server during the build process. The explanation about the download URL is clear and helps prevent potential issues.
To improve the formatting and enable syntax highlighting, add a language specifier to the code block at lines 92-99. For example:
-``` +```text /files?p_File_Name=cgate-2.11.8_3282.zip # Will only download the cgate zip file /files?p_Doc_Ref=C-Gate-V2.11.8&p_enDocType=Software+-+Release&p_File_Name=cgate-2.11.8_3282.zip # Will download the release notes and the cgate zip file, bundled together in a single zip<details> <summary>🧰 Tools</summary> <details> <summary>🪛 Markdownlint</summary><blockquote> 80-80: Expected: setext; Actual: atx Heading style (MD003, heading-style) --- 92-92: null Fenced code blocks should have a language specified (MD040, fenced-code-language) </blockquote></details> </details> --- `101-113`: **Approved: Clear instructions for building and verifying the container** The new subsection provides essential information for developers on how to build and verify the Docker container. The instructions are clear, concise, and include properly formatted code blocks. For consistency with the previous subsection, consider changing the header style: ```diff -### Building the container +Building the container +----------------------This change would make all subsection headers in the Development section use the setext-style format.
🧰 Tools
🪛 Markdownlint
101-101: Expected: setext; Actual: atx
Heading style(MD003, heading-style)
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
⛔ Files ignored due to path filters (49)
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📒 Files selected for processing (38)
- Dockerfile (1 hunks)
- README.md (2 hunks)
- files/cgate/BuildInfo.txt (0 hunks)
- files/cgate/Install.txt (0 hunks)
- files/cgate/cgate.ini (0 hunks)
- files/cgate/cgate.sh (0 hunks)
- files/cgate/config/C-groups.txt (0 hunks)
- files/cgate/config/access.txt (0 hunks)
- files/cgate/lib/javax.comm.properties (0 hunks)
- files/cgate/lib/licenses/BCEL.LICENSE.txt (0 hunks)
- files/cgate/lib/licenses/LICENSE (0 hunks)
- files/cgate/lib/licenses/LICENSE-SAX.html (0 hunks)
- files/cgate/lib/licenses/LICENSE.DOM-documentation.html (0 hunks)
- files/cgate/lib/licenses/LICENSE.DOM-software.html (0 hunks)
- files/cgate/lib/licenses/castor-license.txt (0 hunks)
- files/cgate/lib/licenses/commons-logging-LICENSE.txt (0 hunks)
- files/cgate/lib/licenses/jakarta-regexp-license (0 hunks)
- files/cgate/lib/licenses/regexp.LICENSE.txt (0 hunks)
- files/cgate/lib/licenses/runtime.LICENSE.txt (0 hunks)
- files/cgate/lib/licenses/serializer.LICENSE.txt (0 hunks)
- files/cgate/lib/licenses/serializer.NOTICE.txt (0 hunks)
- files/cgate/lib/licenses/serializer.README.txt (0 hunks)
- files/cgate/lib/licenses/xalan.LICENSE.txt (0 hunks)
- files/cgate/lib/licenses/xalan.NOTICE.txt (0 hunks)
- files/cgate/lib/licenses/xalan.README.txt (0 hunks)
- files/cgate/lib/licenses/xerces-license (0 hunks)
- files/cgate/lib/licenses/xercesImpl.LICENSE.txt (0 hunks)
- files/cgate/lib/licenses/xercesImpl.NOTICE.txt (0 hunks)
- files/cgate/lib/licenses/xercesImpl.README.txt (0 hunks)
- files/cgate/lib/serial-readme.txt (0 hunks)
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- files/cgate/transform/v2tov21.xslt (0 hunks)
💤 Files with no reviewable changes (36)
- files/cgate/BuildInfo.txt
- files/cgate/Install.txt
- files/cgate/cgate.ini
- files/cgate/cgate.sh
- files/cgate/config/C-groups.txt
- files/cgate/config/access.txt
- files/cgate/lib/javax.comm.properties
- files/cgate/lib/licenses/BCEL.LICENSE.txt
- files/cgate/lib/licenses/LICENSE
- files/cgate/lib/licenses/LICENSE-SAX.html
- files/cgate/lib/licenses/LICENSE.DOM-documentation.html
- files/cgate/lib/licenses/LICENSE.DOM-software.html
- files/cgate/lib/licenses/castor-license.txt
- files/cgate/lib/licenses/commons-logging-LICENSE.txt
- files/cgate/lib/licenses/jakarta-regexp-license
- files/cgate/lib/licenses/regexp.LICENSE.txt
- files/cgate/lib/licenses/runtime.LICENSE.txt
- files/cgate/lib/licenses/serializer.LICENSE.txt
- files/cgate/lib/licenses/serializer.NOTICE.txt
- files/cgate/lib/licenses/serializer.README.txt
- files/cgate/lib/licenses/xalan.LICENSE.txt
- files/cgate/lib/licenses/xalan.NOTICE.txt
- files/cgate/lib/licenses/xalan.README.txt
- files/cgate/lib/licenses/xerces-license
- files/cgate/lib/licenses/xercesImpl.LICENSE.txt
- files/cgate/lib/licenses/xercesImpl.NOTICE.txt
- files/cgate/lib/licenses/xercesImpl.README.txt
- files/cgate/lib/serial-readme.txt
- files/cgate/tag/EXAMPLE.xml
- files/cgate/tag/HOME.xml
- files/cgate/transform/projectversions.xml
- files/cgate/transform/repair.xslt
- files/cgate/transform/tidyduplicategroups.xslt
- files/cgate/transform/v21tov22.xslt
- files/cgate/transform/v22tov23.xslt
- files/cgate/transform/v2tov21.xslt
🧰 Additional context used
🪛 Markdownlint
README.md
37-37: Expected: setext; Actual: atx
Heading style(MD003, heading-style)
78-78: Expected: setext; Actual: atx
Heading style(MD003, heading-style)
80-80: Expected: setext; Actual: atx
Heading style(MD003, heading-style)
101-101: Expected: setext; Actual: atx
Heading style(MD003, heading-style)
92-92: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
🔇 Additional comments (2)
README.md (2)
37-37: Approved: Updated Docker Compose terminology and formattingThe change from "docker-compose" to "docker compose" reflects current Docker nomenclature. The formatting improvements in the example enhance readability and adhere to YAML best practices. These changes align well with the PR objective of improving Docker-related content.
🧰 Tools
🪛 Markdownlint
37-37: Expected: setext; Actual: atx
Heading style(MD003, heading-style)
Line range hint
37-113: Overall: Excellent improvements to the READMEThe changes in this PR significantly enhance the README file, making it more informative and user-friendly. The updates to the Docker Compose section, along with the new Development section, provide valuable information for users and developers working with the CGate Server Docker image.
The added content aligns well with the PR objective of improving Docker-related documentation. The instructions for downloading the CGate server and building the container are clear and helpful.
Great job on these improvements! The minor suggestions for consistency in formatting will further enhance the document's readability.
🧰 Tools
🪛 Markdownlint
78-78: Expected: setext; Actual: atx
Heading style(MD003, heading-style)
80-80: Expected: setext; Actual: atx
Heading style(MD003, heading-style)
101-101: Expected: setext; Actual: atx
Heading style(MD003, heading-style)
115-115: null
Emphasis used instead of a heading(MD036, no-emphasis-as-heading)
92-92: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
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| WORKDIR /cgate | ||
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| COPY --from=base /app/cgate /cgate |
There was a problem hiding this comment.
Adjust the COPY command to ensure correct file placement.
The COPY command currently copies /app/cgate from the base stage to /cgate in the app stage. If you're changing the working directory to /app/cgate, you should adjust the COPY destination accordingly to maintain consistency.
Apply this diff to correct the COPY command:
-COPY --from=base /app/cgate /cgate
+COPY --from=base /app/cgate /app/cgateThis ensures that the files are copied to the correct location in the app stage.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| COPY --from=base /app/cgate /cgate | |
| COPY --from=base /app/cgate /app/cgate |
| @@ -1,8 +1,24 @@ | |||
| FROM openjdk:12-alpine | |||
| ARG CGATE_DOWNLOAD_URL=https://download.schneider-electric.com/files?p_File_Name=cgate-2.11.8_3282.zip | |||
There was a problem hiding this comment.
Remove the redundant ARG declaration at line 1.
The ARG CGATE_DOWNLOAD_URL declared before the first FROM instruction is not accessible within build stages unless used in a FROM statement. Since it's not being used in a FROM statement, this declaration is redundant and can be removed. The ARG should be declared after the FROM instruction to be available within the build stages.
Apply this diff to remove the redundant ARG declaration:
-ARG CGATE_DOWNLOAD_URL=https://download.schneider-electric.com/files?p_File_Name=cgate-2.11.8_3282.zipEnsure that you pass the CGATE_DOWNLOAD_URL as a build argument when building the Docker image if you need to override the default value.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| ARG CGATE_DOWNLOAD_URL=https://download.schneider-electric.com/files?p_File_Name=cgate-2.11.8_3282.zip |
| RUN curl -L ${CGATE_DOWNLOAD_URL} -o cgate.zip && \ | ||
| unzip cgate.zip && \ | ||
| rm cgate.zip |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add checksum verification for the downloaded file to ensure integrity.
To enhance security and verify the integrity of the downloaded cgate.zip, consider adding a checksum verification step. This ensures that the file has not been tampered with during the download.
Modify the Dockerfile as follows:
RUN curl -L ${CGATE_DOWNLOAD_URL} -o cgate.zip && \
+ echo "expected_checksum cgate.zip" | sha256sum -c - && \
unzip cgate.zip && \
rm cgate.zipReplace expected_checksum with the actual SHA256 checksum of the cgate.zip file obtained from a trusted source.
Committable suggestion was skipped due to low confidence.
| FROM ubuntu:latest AS base | ||
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| COPY files/cgate ${APP_PATH} | ||
| WORKDIR /app | ||
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| RUN apt-get update && \ | ||
| apt-get install -y curl unzip && \ | ||
| rm -rf /var/lib/apt/lists/* | ||
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| ARG CGATE_DOWNLOAD_URL | ||
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| RUN curl -L ${CGATE_DOWNLOAD_URL} -o cgate.zip && \ | ||
| unzip cgate.zip && \ | ||
| rm cgate.zip | ||
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| FROM openjdk:12-alpine AS app |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Consider using a consistent and smaller base image to reduce the image size.
Currently, the Dockerfile uses ubuntu:latest as the base image in the base stage and openjdk:12-alpine in the app stage. This can lead to a larger final image size and increased build complexity. Consider using a single base image for both stages, preferably one that includes the necessary tools and has a smaller footprint, such as openjdk:12-jre-slim.
Apply this diff to modify the Dockerfile:
-FROM ubuntu:latest AS base
+FROM openjdk:12-jre-slim AS base
WORKDIR /app
-RUN apt-get update && \
- apt-get install -y curl unzip && \
- rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y --no-install-recommends curl unzip ca-certificates && rm -rf /var/lib/apt/lists/*
ARG CGATE_DOWNLOAD_URL
RUN curl -L ${CGATE_DOWNLOAD_URL} -o cgate.zip && \
unzip cgate.zip && \
rm cgate.zip
-FROM openjdk:12-alpine AS app
+FROM base AS app
-WORKDIR /cgate
+WORKDIR /app/cgate
-COPY --from=base /app/cgate /cgate
+COPY --from=base /app/cgate /app/cgateThis approach simplifies the Dockerfile by using a single base image and reduces the overall image size.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| FROM ubuntu:latest AS base | |
| COPY files/cgate ${APP_PATH} | |
| WORKDIR /app | |
| RUN apt-get update && \ | |
| apt-get install -y curl unzip && \ | |
| rm -rf /var/lib/apt/lists/* | |
| ARG CGATE_DOWNLOAD_URL | |
| RUN curl -L ${CGATE_DOWNLOAD_URL} -o cgate.zip && \ | |
| unzip cgate.zip && \ | |
| rm cgate.zip | |
| FROM openjdk:12-alpine AS app | |
| FROM openjdk:12-jre-slim AS base | |
| WORKDIR /app | |
| RUN apt-get update && apt-get install -y --no-install-recommends curl unzip ca-certificates && rm -rf /var/lib/apt/lists/* | |
| ARG CGATE_DOWNLOAD_URL | |
| RUN curl -L ${CGATE_DOWNLOAD_URL} -o cgate.zip && \ | |
| unzip cgate.zip && \ | |
| rm cgate.zip | |
| FROM base AS app | |
| WORKDIR /app/cgate | |
| COPY --from=base /app/cgate /app/cgate |
| RUN apt-get update && \ | ||
| apt-get install -y curl unzip && \ | ||
| rm -rf /var/lib/apt/lists/* |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Combine apt-get commands to reduce layers and improve build efficiency.
Combining the apt-get update and apt-get install commands into a single RUN statement can reduce the number of layers and improve the efficiency of the Docker build process.
Modify the Dockerfile as follows:
-RUN apt-get update && \
- apt-get install -y curl unzip && \
- rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y --no-install-recommends curl unzip ca-certificates && rm -rf /var/lib/apt/lists/*This change consolidates the commands and includes --no-install-recommends to avoid installing unnecessary packages. Adding ca-certificates ensures that SSL certificates are up to date, which is important for secure downloads.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| RUN apt-get update && \ | |
| apt-get install -y curl unzip && \ | |
| rm -rf /var/lib/apt/lists/* | |
| RUN apt-get update && apt-get install -y --no-install-recommends curl unzip ca-certificates && rm -rf /var/lib/apt/lists/* |
| WORKDIR /cgate | ||
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| COPY --from=base /app/cgate /cgate |
There was a problem hiding this comment.
💡 Codebase verification
cgate.jar not found in the repository
Upon verification, cgate.jar is not present in the /app/cgate directory or anywhere else in the repository. This will cause the application to fail at runtime when attempting to execute the JAR.
- Ensure that
cgate.jaris included in the/app/cgatedirectory or update theCOPYinstruction to reflect its actual location.
🔗 Analysis chain
Confirm that cgate.jar is located in the correct directory at runtime.
Ensure that after unzipping cgate.zip, the cgate.jar file is present in the /app/cgate directory, as the CMD instruction will attempt to execute it from there. Depending on the structure of the unzipped files, cgate.jar might be in a subdirectory, which could cause the application to fail at runtime.
Run the following script to check the presence of cgate.jar in the /app/cgate directory:
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify that cgate.jar exists in /app/cgate directory
if [ -f "/app/cgate/cgate.jar" ]; then
echo "cgate.jar found in /app/cgate"
else
echo "cgate.jar not found in /app/cgate"
fi
Length of output: 110
Script:
#!/bin/bash
# Description: Recursively search for cgate.jar within /app/cgate directory
fd "cgate.jar" /app/cgate
Length of output: 123
Script:
#!/bin/bash
# Description: Search for cgate.jar in the entire repository
fd "cgate.jar"
Length of output: 14
Summary by CodeRabbit
New Features
Bug Fixes
Chores