FROM alpine:3.12

# 1. Install glibc compatibility for Alpine
RUN apk --no-cache add binutils \
    && echo "Getting libc libraries" \
    && curl -sL https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub -o /etc/apk/keys/sgerrand.rsa.pub \
    && curl -sLO https://github.com/sgerrand/alpine-pkg-glibc/releases/download/${GLIBC_VER}/glibc-${GLIBC_VER}.apk \
    && curl -sLO https://github.com/sgerrand/alpine-pkg-glibc/releases/download/${GLIBC_VER}/glibc-bin-${GLIBC_VER}.apk \
    && echo "Installing libc libraries" \
    && apk add --no-cache \
        glibc-${GLIBC_VER}.apk \
        glibc-bin-${GLIBC_VER}.apk

# 2. Install rush parallel runner (temporary)
# This is used for optimizing the botocore data later.
RUN echo "Installing rush parallel runner (temporary)" \
    && curl -sSfL https://github.com/shenwei356/rush/releases/download/v0.4.2/rush_linux_amd64.tar.gz -o - \
    | tar -C /tmp/ -zxf -

# 3. Install AWS CLI v2
RUN echo "Installing AWS CLI" \
    && curl -sL https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip -o awscliv2.zip \
    && unzip awscliv2.zip \
        -x 'aws/dist/awscli/examples/**' 'aws/dist/docutils/**' \
    && aws/install

# 4. Clean and Slim the Installation
RUN echo "Cleaning and slimming AWS CLI installation" \
    # Remove installation files and unnecessary components
    && rm -rvf \
        awscliv2.zip \
        aws \
        /usr/local/aws-cli/v2/*/dist/aws_completer \
        /usr/local/aws-cli/v2/*/dist/awscli/data/ac.index \
        /usr/local/aws-cli/v2/*/dist/awscli/examples \
    # Remove example JSON files from botocore data
    && find /usr/local/aws-cli/v2/current/dist/botocore/data/ -name "*.json" -name "examples*" -exec rm {} \; \
    # Optimize remaining JSON files by removing 'documentation' field using jq/rush
    && find /usr/local/aws-cli/v2/current/dist/botocore/data/ -name "*.json" \
        | /tmp/rush 'echo "optimizing {}"; jq -cer "del(.. | .documentation?)" "{}" > "{}.tmp" && mv "{}.tmp" "{}"'

# 5. Final Cleanup
RUN echo "Removing artifacts" \
    && rm /tmp/rush \
    && apk --no-cache del \
        binutils \
    && rm glibc-${GLIBC_VER}.apk \
    && rm glibc-bin-${GLIBC_VER}.apk \
    && rm -rf /var/cache/apk/*