Upload file provider for Strapi - OVH with OpenStack. Article https://oramind.com/develop-strapi-upload-provider/ | original gist: https://gist.github.com/csotiriou/83436faba05d76698f2e8684b47d66e6

index.js

const pkgcloud = require('pkgcloud');
const streamifier = require('streamifier');

module.exports = {

  init(providerOptions) {
    const client = pkgcloud.storage.createClient(providerOptions);
    const options = { container: providerOptions.defaultContainerName }

    const remoteURL = () =>
      new Promise((resolve, reject) => {
        return client.getContainer(providerOptions.defaultContainerName, (err, res) => {
          if (err && !res) return reject(err);
          return resolve(res);
        });
      });

    //returning an object with two methods defined
    return {

      upload(file) {
        const readStream = streamifier.createReadStream(file.buffer);
        const writeStream = client.upload({
          ...options,
          remote: file.hash,
          contentType: file.mime,
        });

        return new Promise((resolve, reject) => {

          readStream.pipe(writeStream);
          writeStream.on('error', error => error && reject(error));
          
          writeStream.on('success', result => {
            remoteURL()
              .then(data => {
                resolve(
                  Object.assign(file, {
                    mime: result.contentType,
                    url: `${providerOptions.publicUrlPrefix}/${result.name}`,
                  })
                );
              })
              .catch(err => console.error(err) && reject(err));
          });
        });
        
      },

      delete(file) {
        return new Promise((resolve, reject) => {
          client.removeFile(providerOptions.defaultContainerName, file.hash, error => {
            if (error) return reject(error);
            return resolve();
          });
        });
      }
    };
  },
};

package.json

{
  "name": "strapi-provider-openstack-ovh",
  "version": "1.0.0",
  "maintainers": [
    "https://gist.github.com/csotiriou/83436faba05d76698f2e8684b47d66e6"
  ],
  "description": "ovh upload provider for strapi",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "Christos Sotiriou",
  "license": "ISC",
  "dependencies": {
    "pkgcloud": "^2.2.0",
    "streamifier": "^0.1.1"
  }
}

plugins.js

module.exports = ({ env }) => {
  return {
    upload: {
      provider: 'ovh',
      providerOptions: {
        keystoneAuthVersion: 'v3',
        provider: 'openstack', // required
        username: env('STORAGE_USERNAME','user-id'),
        password: env('STORAGE_PASSWORD', '<<storage-password>>'),
        region: env('STORAGE_REGION', 'DE'),
        domainId: env('STORAGE_DOMAIN_ID', 'default'),
        domainName: env('STORAGE_TENANT_NAME','tenant_name'),
        authUrl: env('STORAGE_AUTH_URL', 'https://auth.cloud.ovh.net/'),
        defaultContainerName: env('STORAGE_CONTAINER_NAME', '<<storage container name>>'),
        publicUrlPrefix: env('STORAGE_PUBLIC_URL_PREFIX', 'your public files URL')
      },
    },
  }
};