Crashes inside Alpine docker

[AyushG3112]

Node.js Version: 10.15.0
hummus-recipe: V1.9.2

Hi,

I am trying to add image to an existing PDF using .image . It works working on my local machine (Ubuntu 16.04), however it crashes inside the Alpine container on calling endPDF(thus creating a corrupted PDF).

Tried downgrading to v1.7.4, didn't help.

Any help is appreciated.

[chunyenHuang]

Can you share your Dockerfile for alpine?

[AyushG3112]

My Dockerfile looks like:

FROM node:10.13.0-alpine

RUN mkdir -p /var/app/
WORKDIR /var/app/
ENV NODE_ENV=development

RUN wget -qO- "https://github.com/dustinblackman/phantomized/releases/dow
nload/2.1.1a/dockerized-phantomjs.tar.gz" | tar xz -C /
RUN mkdir -p /var/app/templates/tmp
RUN apk add pdftk
RUN npm config set strict-ssl false
RUN npm install -g nodemon
RUN npm install -g nyc
RUN npm install -g mocha

EXPOSE 3000

CMD ["./dev-start.sh"]

dev-start.sh runs npm install and starts my service using nodemon

Here's my hummus-recipe integration:

    const pdfDoc = new HummusRecipe(input, output);
    pdfDoc
      .editPage(2)
      .image('/path/to/image1.png'), 350, 660, {
        width: 200,
        keepAspectRatio: true,
      })
      .image('/path/to/image2.png'), 125, 740, {
        width: 50,
        keepAspectRatio: true,
      })
      .endPage()
      .endPDF(console.log);

[AyushG3112]

Might be worth noting that I also ran

apk --no-cache add g++ gcc libgcc libstdc++ linux-headers make python

Inside the container, then restared my app, but to no avail.

[chunyenHuang]

Thanks for sharing. Would you like to give this a try?

galkahana/HummusJS#320 (comment)

We were able to solve this problem by including make, gcc, g++, and python in our Alpine container and running npm rebuild hummus --build-from-source.

[AyushG3112]

@chunyenHuang Thanks that works!

For posterity, we had to add the following things to our Dockerfile:

RUN apk add  g++ gcc libgcc libstdc++ linux-headers make python
RUN npm install -g node-gyp 
RUN npm install
RUN npm rebuild hummus --build-from-source

[AndreHermanto]

I come across this issue, but the solution given doesn't work for me. This is my Dockerfile

FROM node:10.13.0-alpine

# Create app directory
WORKDIR /usr/src/app

COPY package*.json ./

RUN apk add  g++ gcc libgcc libstdc++ linux-headers make python
RUN npm install -g node-gyp 
RUN npm install

RUN npm rebuild hummus --build-from-source

COPY . .

EXPOSE 3000
CMD [ "npm", "start" ]

I have used "hummus-recipe": "^1.9.2" and node:10.13.0-alpine, but still got this following error in the container

internal/modules/cjs/loader.js:717
  return process.dlopen(module, path.toNamespacedPath(filename));
                 ^
Error: Error loading shared library /usr/src/app/node_modules/hummus/binding/hummus.node: Exec format error
    at Object.Module._extensions..node (internal/modules/cjs/loader.js:717:18)
    at Module.load (internal/modules/cjs/loader.js:598:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:537:12)
    at Function.Module._load (internal/modules/cjs/loader.js:529:3)
    at Module.require (internal/modules/cjs/loader.js:636:17)
    at require (internal/modules/cjs/helpers.js:20:18)
    at Object.<anonymous> (/usr/src/app/node_modules/hummus/hummus.js:5:31)
    at Module._compile (internal/modules/cjs/loader.js:688:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:699:10)
    at Module.load (internal/modules/cjs/loader.js:598:32)

[AyushG3112]

@AndreHermanto can you sh inside the container and verify that the node_modules/hummus directory exists in your WORKDIR?

[AndreHermanto]

@AyushG3112 I can't ssh into container as the container exited immediately. Is my Dockerfile correct?

[AyushG3112]

@AndreHermanto seems fine but I've seen issues when npm install is ran from a Dockerfile. Not exactly sure what causes it though. Also, to sh into the container, replace

CMD [ "npm", "start" ]

with

CMD ["sh"]

I think that should work

[AndreHermanto]

@AyushG3112 Its the same, the container still exited immediately.

[Suroor-Ahmmad]

Any resolution for this issue? I tried all above mentioned methods and still no help

[hdiaz-nectia]

Hi @chunyenHuang @AyushG3112
I've a similar problem, and the above solution doesn't work for me.

Dockerfile
node:12.19-alpine

console.log('New');
const pdfDoc = new HummusRecipe(filenameSrc, filenameEnc);
console.log('Encrypt');

pdfDoc
    .encrypt({
        userPassword: key,
        ownerPassword: key,
        userProtectionFlag: 4
    })
    .endPDF();

console.log('End');

The last step executed is log Encrypt an then simply it exit from docker run. Last log never is printed (and any other error) and when I go inside container with docker exec i saw that the destination file has 0 size.

[hdiaz-nectia]

Hi @chunyenHuang @AyushG3112
I've a similar problem, and the above solution doesn't work for me.

Dockerfile
node:12.19-alpine

console.log('New');
const pdfDoc = new HummusRecipe(filenameSrc, filenameEnc);
console.log('Encrypt');

pdfDoc
    .encrypt({
        userPassword: key,
        ownerPassword: key,
        userProtectionFlag: 4
    })
    .endPDF();

console.log('End');

The last step executed is log Encrypt an then simply it exit from docker run. Last log never is printed (and any other error) and when I go inside container with docker exec i saw that the destination file has 0 size.

My mistake, the correct is:

RUN npm rebuild muhammara --build-from-source