Set --allow-downgrades flag for GLIBC patch

fixes #6

Author: prabhakk-mw

matlab/Dockerfile

@@ -5,13 +5,13 @@
 # on a base image of jupyter/base-notebook.
 
 ## Sample Build Command:
-# docker build --build-arg MATLAB_RELEASE=r2021b \
+# docker build --build-arg MATLAB_RELEASE=r2022a \
 #              --build-arg MATLAB_PRODUCT_LIST="MATLAB Deep_Learning_Toolbox Symbolic_Math_Toolbox"\
 #              --build-arg LICENSE_SERVER=12345@hostname.com \
 #              -t my_matlab_image_name .
 
-# Specify release of MATLAB to build. (use lowercase, default is r2021b)
-ARG MATLAB_RELEASE=r2021b
+# Specify release of MATLAB to build. (use lowercase, default is r2022a)
+ARG MATLAB_RELEASE=r2022a
 
 # Specify the list of products to install into MATLAB, 
 ARG MATLAB_PRODUCT_LIST="MATLAB"
@@ -80,7 +80,7 @@ RUN export DEBIAN_FRONTEND=noninteractive &&\
     tar -x -f all-packages.tar.gz \
     --exclude glibc-*.deb \
     --exclude libc6-dbg*.deb &&\
-    apt-get install --yes --no-install-recommends ./*.deb &&\
+    apt-get install --yes --no-install-recommends --allow-downgrades ./*.deb &&\
     rm -fr /packages
 WORKDIR /
 

matlab/Dockerfile.byoi

@@ -5,13 +5,13 @@
 # on a base image of jupyter/base-notebook.
 
 ## Sample Build Command:
-# docker build --build-arg MATLAB_RELEASE=r2021b \
+# docker build --build-arg MATLAB_RELEASE=r2022a \
 #              --build-arg MATLAB_IMAGE_NAME=mathworks/matlab \
 #              --build-arg LICENSE_SERVER=12345@hostname.com \
 #              -t my_matlab_image_name -f Dockerfile.byoi .
 
-# Specify release of MATLAB to build. (use lowercase, default is r2021b)
-ARG MATLAB_RELEASE=r2021b
+# Specify release of MATLAB to build. (use lowercase, default is r2022a)
+ARG MATLAB_RELEASE=r2022a
 
 ARG DEFAULT_IMAGE_FROM_DOCKERHUB=mathworks/matlab:${MATLAB_RELEASE}
 
@@ -99,7 +99,7 @@ RUN export DEBIAN_FRONTEND=noninteractive &&\
     tar -x -f all-packages.tar.gz \
     --exclude glibc-*.deb \
     --exclude libc6-dbg*.deb &&\
-    apt-get install --yes --no-install-recommends ./*.deb &&\
+    apt-get install --yes --no-install-recommends --allow-downgrades ./*.deb &&\
     rm -fr /packages
 WORKDIR /
 

matlab/Dockerfile.mounted

@@ -5,13 +5,13 @@
 # Folder with the MATLAB installation needs to be mounted into the image at /opt/matlab
 
 ## Sample Build Command:
-# docker build --build-arg MATLAB_RELEASE=r2021b \
+# docker build --build-arg MATLAB_RELEASE=r2022a \
 #              --build-arg LICENSE_SERVER=12345@hostname.com \
 #              -t my_matlab_image_name .
 
-# Specify release of MATLAB being mounted. (use lowercase, default is r2021b)
+# Specify release of MATLAB being mounted. (use lowercase, default is r2022a)
 # Used to fetch & install MATLAB's s/w dependencies
-ARG MATLAB_RELEASE=r2021b
+ARG MATLAB_RELEASE=r2022a
 
 # Optional Network License Server information in the form of port@hostname
 ARG LICENSE_SERVER
@@ -65,7 +65,7 @@ RUN export DEBIAN_FRONTEND=noninteractive &&\
     tar -x -f all-packages.tar.gz \
     --exclude glibc-*.deb \
     --exclude libc6-dbg*.deb &&\
-    apt-get install --yes --no-install-recommends ./*.deb &&\
+    apt-get install --yes --no-install-recommends --allow-downgrades ./*.deb &&\
     rm -fr /packages
 WORKDIR /
 

matlab/README-byoi.md

@@ -7,13 +7,13 @@ Pass the name of your existing MATLAB image to docker build using the `build-tim
 `Dockerfile.byoi` supports the following build-time variables:
 | Argument Name | Default value | Effect |
 |---|---|---|
-| **MATLAB_IMAGE_NAME** | mathworks/matlab:r2021b | Specify the name of the Docker image that MATLAB should be extracted from. |
-| [MATLAB_RELEASE](#build-an-image-for-a-different-release-of-matlab) | r2021b | The MATLAB release you are using. Used to install its software dependencies.|
+| **MATLAB_IMAGE_NAME** | mathworks/matlab:r2022a | Specify the name of the Docker image that MATLAB should be extracted from. |
+| [MATLAB_RELEASE](#build-an-image-for-a-different-release-of-matlab) | r2022a | The MATLAB release you are using. Used to install its software dependencies.|
 | [LICENSE_SERVER](#build-an-image-with-license-server-information) | *unset* | The port and hostname of the machine that is running the Network License Manager, using the `port@hostname` syntax. For Example: `27000@MyServerName`. </br> Click [Using the Network License Manager](https://github.com/mathworks-ref-arch/matlab-dockerfile#use-the-network-license-manager) to learn more.|
 
 To build the Docker image, follow these steps:
 ```bash
-docker build --build-arg MATLAB_RELEASE=r2021b \
+docker build --build-arg MATLAB_RELEASE=r2022a \
               --build-arg MATLAB_IMAGE_NAME=mathworks/matlab \
               --build-arg LICENSE_SERVER=12345@hostname.com \
               -t maltab-notebook -f Dockerfile.byoi .

matlab/README.md

@@ -40,7 +40,7 @@ The [Dockerfile](https://github.com/mathworks-ref-arch/matlab-integration-for-ju
 | Argument Name | Default value | Effect |
 |---|---|---|
 | [MATLAB_PRODUCT_LIST](#customize-products-to-install) | MATLAB | Specify the list of products to install using product names separated by spaces. Replace spaces within names with underscores. For example: `MATLAB Simulink Deep_Learning_Toolbox Parallel_Computing_Toolbox` </br> See [MPM Documentation](https://github.com/mathworks-ref-arch/matlab-dockerfile/blob/main/MPM.md) for more information.|
-| [MATLAB_RELEASE](#build-an-image-for-a-different-release-of-matlab) | r2021b | The MATLAB release you want to install. **MUST** be newer than `r2020b` and specified in lower-case|
+| [MATLAB_RELEASE](#build-an-image-for-a-different-release-of-matlab) | r2022a | The MATLAB release you want to install. **MUST** be newer than `r2020b` and specified in lower-case|
 | [LICENSE_SERVER](#build-an-image-with-license-server-information) | *unset* | The port and hostname of the machine that is running the Network License Manager, using the `port@hostname` syntax. For Example: `27000@MyServerName`. </br> Click [Using the Network License Manager](https://github.com/mathworks-ref-arch/matlab-dockerfile#use-the-network-license-manager) to learn more.|
 
 ### Customize Products to Install