Simple Alpine container with curl.
# Redirect output to file on local disk
docker run --rm weahead/curl -sL https://example.com > output.html
# Download to file on local disk
docker run --rm -v $PWD:/data weahead/curl -sL https://example.com -o /data/output.html
# Download to file on other volume
docker run --rm -v destination-volume:/data weahead/curl -sL https://example.com -o /data/output.html