jysgro/webp
cwebp and dwebp command to code and decode web images in PNG or JPG
218
jysgro/webp repository overview
Recreated from information at https://hub.docker.com/r/elswork/cwebp/
Usage
Gleaned from original elswork and GitHub repository elswork/cwebp which contains a "data" directory with a few images for testing.
cwebp and dwebp
A Docker file to call cwebp and dwebp, and other functions from libwebp library.
You should read carefully the usage documentation of every tool!
Details from elswork
| Website | GitHub | Docker Hub |
|---|---|---|
| Deft.Work my personal blog | cwebp | cwebp |
| Docker Pulls | Docker Stars | Size/Layers |
|---|---|---|
 |  |  |
Usage Example
More options detailed on original. Below are the docker commands that seem most useful.
NOTE: To share the current directory use -v ${PWD}:/data which is generic syntax that works for Mac/Windows/Linux
To use my version change elswork/cwebp to jysgro/webp:alpine3.20_cwebp_dwebp in docker commands below.
Open ash in container
docker run -it --rm -v /path-to-folder:/data --entrypoint "/bin/ash" elswork/cwebp
Start a custom command in container
docker run -it --rm -v /path-to-folder:/data elswork/cwebp cwebp -lossless deftwork.png -o deftwork.webp
Start a container command
docker run -it --rm -v /path-to-folder:/data elswork/cwebp cwebp -lossless deftwork.png -o deftwork.webp
Convert all .png from folder and subfolders recursively
docker run -it --rm -v /path-to-folder:/data elswork/cwebp \
find ./ -type f -name '*.png' -exec sh -c 'cwebp -lossless $1 -o "${1%.png}.webp"' _ {} \;
Convert all .png concurrently
This is faster than previous operation because it raise concurrent threads.
docker run -it --rm -v /path-to-folder:/data elswork/cwebp \
find ./ -type f -name '*.png' | xargs -P 8 -I {} sh -c 'cwebp -lossless $1 -o "${1%.png}.webp"' _ {} \;
Dockerfile
Docker file from https://hub.docker.com/r/elswork/cwebp/Dockerfile
Used "as is" but since the :latest option makes Alpine as version 3.20.0 rather than 3.12 in the original.
ARG BASEIMAGE=alpine:latest
FROM ${BASEIMAGE}
ARG BUILD_DATE
ARG VCS_REF
ARG VERSION
LABEL mantainer="Eloy Lopez <[email protected]>" \
org.label-schema.build-date=$BUILD_DATE \
org.label-schema.name="cwebp" \
org.label-schema.description="libwebp codec distribution a reference implementation for the encoder and decoder applications" \
org.label-schema.url="https://deft.work/cwebp" \
org.label-schema.vcs-ref=$VCS_REF \
org.label-schema.vcs-url="https://github.com/Eloy Lopez/cwebp" \
org.label-schema.vendor="Deft Work" \
org.label-schema.version=$VERSION \
org.label-schema.schema-version="1.0"
RUN apk update && \
apk upgrade -U && \
apk add ca-certificates libwebp libwebp-tools && \
rm -rf /var/cache/*
WORKDIR /data
# ENTRYPOINT ["/bin/ash"]
Built for amd64 as well as arm64 with:
docker buildx build -t jysgro/webp:alpine3.20_cwebp_dwebp --push --platform linux/amd64,linux/arm64 .
Tag summary
Content type
Image
Digest
sha256:f096fc475…
Size
7.1 MB
Last updated
over 2 years ago
docker pull jysgro/webp:alpine3.20_cwebp_dwebp