I'm trying to setup a Lambda layer to add a watermark to images with Graphicsmagick. I'm however a bit stuck at getting the binary to work with the libraries, so how do I setup a link to the libraries within the child process?
So far I've built the Graphicsmagick binary with the following options:
./configure --prefix=/opt/graphicsmagick --enable-shared=no --enable-static=yes --disable-shared --disable-installed
Pretty much followed the instructions on this answer and ideas from this Gist. Either one however does not concern running binaries as a layer. So wondering maybe there are some specifics to that which I'm missing here?
Heres the code from my handler:
module.exports.run = async (event, context, callback) => {
process.env['IM_PATH'] = '/opt/graphicsmagick/bin/'
process.env['LD_LIBRARY_PATH'] = '/opt/graphicsmagick/lib'
process.env['DYLD_LIBRARY_PATH'] = '/opt/graphicsmagick/lib'
process.env['MAGICK_HOME'] = '/opt/graphicsmagick/'
...
const graphicsmagick = '/opt/graphicsmagick/bin/gm'
const graphicsmagickArgs = [
'-dissolve', '15',
'-tile',
watermark,
inputImage,
output,
]
spawn(graphicsmagick, graphicsmagickArgs, { stdio: 'inherit' })
.on('close', () => console.log('success'))
.on('error', error => console.log('error', error))
...
}
I've also tried running an exec with the environment variables like so:
exec('/opt/graphicsmagick/bin/gm', { env:
{
'IM_PATH': `/opt/graphicsmagick/bin/`,
'LD_LIBRARY_PATH': '/opt/graphicsmagick/lib',
'DYLD_LIBRARY_PATH': '/opt/graphicsmagick/lib',
'MAGICK_HOME': `/opt/graphicsmagick/`,
}}, (err, stdout, stderr) => {
console.log('error', err)
console.log('stdout', stdout)
console.log('stderr', stderr)
})
The layer runs Graphicsmagick but does not find the libraries folder. I get the following error in the console:
/opt/graphicsmagick/bin/gm: error while loading shared libraries:libpng15.so.15: cannot open shared object file: No such file or directory
