certbot-Dockerfile

Dockerfile

FROM python:3.8-alpine
LABEL maintainer="Selim Baygin <selimbaygin@gmail.com>"

# VOLUME
ARG CERTBOT_VERSION
ENV CERTBOT_VERSION=${CERTBOT_VERSION}

WORKDIR /opt/certbot

RUN echo "${CERTBOT_VERSION}"

RUN set -ex \
 && apk add --no-cache \
      gcc \
      musl-dev \
      libffi-dev \
      openssl-dev \
 && pip3 install dns-lexicon

# Retrieve certbot code
RUN mkdir -p src \
 && wget -O certbot-${CERTBOT_VERSION}.tar.gz https://github.com/certbot/certbot/archive/v${CERTBOT_VERSION}.tar.gz \
 && tar xf certbot-${CERTBOT_VERSION}.tar.gz \
 && cp certbot-${CERTBOT_VERSION}/CHANGELOG.md certbot-${CERTBOT_VERSION}/README.rst src/ \
 && cp certbot-${CERTBOT_VERSION}/letsencrypt-auto-source/pieces/dependency-requirements.txt . \
 && cp -r certbot-${CERTBOT_VERSION}/tools tools \
 && cp -r certbot-${CERTBOT_VERSION}/acme src/acme \
 && cp -r certbot-${CERTBOT_VERSION}/certbot src/certbot \
 && rm -rf certbot-${CERTBOT_VERSION}.tar.gz certbot-${CERTBOT_VERSION}

ENTRYPOINT ["/bin/sh"]

Issue is with the build args provide just the version number 1.3.0 and change the dockerfile like this

FROM python:3.8-alpine
LABEL maintainer="Selim Baygin selimbaygin@gmail.com"

ARG CERTBOT_VERSION
ENV CERTBOT_VERSION=${CERTBOT_VERSION}

WORKDIR /opt/certbot

RUN echo "${CERTBOT_VERSION}"

RUN set -ex
&& apk add --no-cache
gcc
musl-dev
libffi-dev
openssl-dev
&& pip3 install dns-lexicon

RUN mkdir -p src
&& wget -O certbot-v${CERTBOT_VERSION}.tar.gz https://github.com/certbot/certbot/archive/v${CERTBOT_VERSION}.tar.gz
&& tar -xvf certbot-v${CERTBOT_VERSION}.tar.gz
&& cp certbot-${CERTBOT_VERSION}/CHANGELOG.md certbot-${CERTBOT_VERSION}/README.rst src/
&& cp certbot-${CERTBOT_VERSION}/letsencrypt-auto-source/pieces/dependency-requirements.txt .
&& cp -r certbot-${CERTBOT_VERSION}/tools tools
&& cp -r certbot-${CERTBOT_VERSION}/acme src/acme
&& cp -r certbot-${CERTBOT_VERSION}/certbot src/certbot
&& rm -rf certbot-${CERTBOT_VERSION}.tar.gz certbot-${CERTBOT_VERSION}

ENTRYPOINT ["/bin/sh"]

The character 'v' was causing problem