ENV

dev env

brew install vips

export CGO_CFLAGS_ALLOW="-Xpreprocessor"

build Dockerfile

FROM alpine:3.12

RUN apk add --update go gcc g++ git

RUN apk add --update build-base vips-dev

build command

set CGO_ENABLED=1, eg:

GOOS=linux CGO_ENABLED=1 GOARCH=amd64 go build -tags 'bindatafs' -a -o main main.go

deploy Dockerfile

FROM alpine:3.12

RUN apk --update upgrade && \

    apk add ca-certificates && \
    
    apk add tzdata && \
    
    apk add build-base vips-dev && \
    
    rm -rf /var/cache/apk/*

Usage

Setup media library and add below code, then it will compress jpg/png and generate webp for you.

import "github.com/qor/media/handlers/vips"

vips.UseVips(vips.Config{EnableGenerateWebp: true})

you can adjust image quality by config if you want.

type Config struct {
	EnableGenerateWebp bool
	PNGtoWebpQuality   int
	JPEGtoWebpQuality  int
	JPEGQuality        int
	PNGQuality         int
	PNGCompression     int
}