dockerfile and scripts to create docker image locally and test with postgresql

Author: bhumilsarvaiya

docker/Dockerfile

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+FROM ubuntu:bionic-20200219 as tmp
+RUN mkdir supertokens
+WORKDIR supertokens
+COPY core core
+COPY cli cli
+COPY downloader downloader
+COPY plugin-interface plugin-interface
+COPY plugin plugin
+COPY install ./
+COPY config.yaml ./
+COPY config.yaml config.yaml.original
+COPY jre jre
+COPY version.yaml ./
+RUN ./install
+FROM debian:stable-slim
+RUN groupadd supertokens && useradd -m -s /bin/bash -g supertokens supertokens
+RUN apt-get update && apt-get install -y --no-install-recommends gnupg dirmngr && rm -rf /var/lib/apt/lists/*
+ENV GOSU_VERSION 1.7
+RUN set -x \
+	&& apt-get update && apt-get install -y --no-install-recommends ca-certificates wget && rm -rf /var/lib/apt/lists/* \
+	&& wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture)" \
+	&& wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture).asc" \
+	&& export GNUPGHOME="$(mktemp -d)" \
+	&& gpg --batch --keyserver hkps://keys.openpgp.org --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
+	&& gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu \
+	&& gpgconf --kill all \
+	&& rm -rf "$GNUPGHOME" /usr/local/bin/gosu.asc \
+	&& chmod +x /usr/local/bin/gosu \
+	&& apt-get purge -y --auto-remove ca-certificates wget
+COPY --from=tmp --chown=supertokens /usr/lib/supertokens /usr/lib/supertokens
+COPY --from=tmp --chown=supertokens /usr/bin/supertokens /usr/bin/supertokens
+COPY docker-entrypoint.sh /usr/local/bin/
+RUN echo "$(md5sum /usr/lib/supertokens/config.yaml | awk '{ print $1 }')" >> /CONFIG_HASH
+RUN ln -s usr/local/bin/docker-entrypoint.sh /entrypoint.sh # backwards compat
+EXPOSE 3567
+ENTRYPOINT ["docker-entrypoint.sh"]
+CMD ["supertokens", "start"]

docker/README.md

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+## Docker image for testing
+
+- the script `createPostgresqlImage.sh` here is used to create docker image with postgresql plugin.
+- Before the user runs this script, they need to start the testing env (i.e. `./startTestingEnv --wait`).
+- This script can only be used for postgresql plugin. No other plugin is supported. So before running the script, make sure to switch to postgresql-plugin in the `modules.txt`.
+
+
+### What the script is doing?
+- it fetches the required **jre** (based on your system architecture) and **docker-entrypoint.sh** from github.
+- copies the required cli, core, plugin, etc. from the parent directory into this folder
+- creates docker image with tag `supertokens-postgresql-testing`
+- removes all the copied/fetched files and folders

docker/createPostgresqlImage.sh

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+## getting information regarding the machine architecture
+OS= && dpkgArch="$(uname -m)"
+case "${dpkgArch##*-}" in
+    amd64) OS='linux';;
+    x86_64) OS='linux';;
+    arm64) OS='linux-arm';;
+    *) OS='linux';;
+esac
+
+## fetching the appropriate jre from github
+curl -o jre.zip -s -X GET \
+	"https://raw.githubusercontent.com/supertokens/jre/master/jre-15.0.1-${OS}.zip"
+
+## fetching docker-entrypoint.sh from github
+curl -o docker-entrypoint.sh -s -X GET \
+    "https://raw.githubusercontent.com/supertokens/supertokens-docker-postgresql/master/docker-entrypoint.sh"
+
+## marking docker-entrypoint.sh as executable
+chmod +x docker-entrypoint.sh
+
+## unzipping the jre zip and removing the zip file once extracted
+unzip jre.zip && mv jre-* jre && rm -rf jre.zip
+
+rm -rf __MACOSX
+
+## copying all the necessary files and folders
+cp -r ../core core
+cp -r ../cli cli
+cp -r ../downloader downloader
+cp -r ../plugin-interface plugin-interface
+cp -r ../plugin plugin
+cp -r ../install ./
+cp -r ../temp/config.yaml ./
+cp -r ../temp/config.yaml config.yaml.original
+cp -r ../version.yaml ./
+
+## building the docker image
+docker build -t supertokens-postgresql-testing .
+
+## removing all the files and folders previously copied or extracted
+rm -rf core
+rm -rf cli
+rm -rf downloader
+rm -rf plugin-interface
+rm -rf plugin
+rm -rf install
+rm -rf config.yaml
+rm -rf config.yaml.original
+rm -rf version.yaml
+rm -rf jre
+rm -rf docker-entrypoint.sh