Added Readme & gitignore

.gitignore

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+/.idea/

README.md

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 # mongodb-docker
 
-MongoDB Docker images for generic Linux AMD64 architecture
+MongoDB Docker images for generic Linux AMD64 architecture
+
+## Goal
+
+Since version 5 MongoDB supports only processors with AVX instructions extensions.  
+If you try to run on old processor, then you'll get error like below:
+```
+/opt/bitnami/scripts/libos.sh: line 346:    58 Illegal instruction     (core dumped) "$@" > /dev/null 2>&1
+```
+So, the goal of the project is to provide the ability to run an application on generic amd64 architecture.
+
+## Image
+
+You can use it in Docker as:
+```
+docker pull harbor.flakybit.net/mongodb/server:latest
+```
+
+## Building binaries
+
+Binaries are available [here](https://dist.flakybit.net/mongodb/) and were built against Debian 12:
+```
+apt update
+apt install -y build-essential
+apt install -y libcurl4-openssl-dev libssl-dev liblzma-dev
+
+apt install -y python3 python3-venv python-dev-is-python3
+
+mkdir src
+cd src
+apt install -y git
+git clone --depth 1 --branch <version> https://github.com/mongodb/mongo.git
+cd  mongo
+
+python3 -m venv .venv --prompt mongo
+source .venv/bin/activate
+python3 -m pip install -r etc/pip/compile-requirements.txt
+
+# Apply patch here
+
+python3 buildscripts/scons.py install-servers --config=force \
+    -j16 \
+    --opt=on \
+    --release \
+    --dbg=off \
+    --linker=gold \
+    --disable-warnings-as-errors \
+    --variables-files=etc/scons/developer_versions.vars \
+    --experimental-optimization=-sandybridge
+    
+```
+
+## Links
+
+1. [MongoDB Platform Support](https://www.mongodb.com/docs/manual/administration/production-notes/#platform-support)
+2. [Mongo 5.0.0 crashes but 4.4.6 works](https://github.com/docker-library/mongo/issues/485)
+3. [MongoDB v5.0 requires CPU AVX instructions](https://github.com/turnkeylinux/tracker/issues/1724)
+4. [libos.sh: line 344 error when installing ReplicaSet](https://github.com/bitnami/charts/issues/12834)
+5. [mongodb can't be installed by helm install](https://github.com/bitnami/charts/issues/10255)
+6. [Building Mongodb without avx](https://github.com/GermanAizek/mongodb-without-avx/)
+7. [Building MongoDB](https://github.com/mongodb/mongo/blob/master/docs/building.md)
+8. [Bitnami MongoDB](https://github.com/bitnami/containers/tree/main/bitnami/mongodb/7.0/debian-11)