Unable to mount bucket with gcsfuse on Cloud Run

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With the second generation runtime of Google Cloud Run, it's now possible to mount Google Storage Buckets using gcsfuse.

https://cloud.google.com/run/docs/tutorials/network-filesystems-fuse

The python3 example is working fine. Unfortunately, I keep getting this error with my Dockerfile:

bin/fusermount: failed to open /dev/fuse: Permission denied
mountWithArgs: mountWithConn: Mount: mount: running /bin/fusermount: exit status 1

screenshot

Dockerfile

# https://github.com/chiaen/docker-gcsfuse
FROM golang:1.17.5-alpine as gcsfuse
RUN apk add --no-cache git
ENV GOPATH /go
RUN go get -u github.com/googlecloudplatform/gcsfuse

FROM composer:2 as vendor
COPY composer.json composer.json
COPY composer.lock composer.lock
RUN composer install --ignore-platform-reqs --no-interaction --prefer-dist

FROM craftcms/nginx:7.4

ENV MNT_DIR /mnt/gcs

USER root
RUN apk add --no-cache mysql-client postgresql-client ca-certificates fuse nano sudo tini bash

RUN mkdir -p $MNT_DIR
RUN chown www-data:www-data $MNT_DIR
USER www-data

COPY --chown=www-data:www-data --from=vendor /app/vendor/ /app/vendor/
COPY --chown=www-data:www-data . .
COPY --from=gcsfuse /go/bin/gcsfuse /usr/local/bin
COPY supervisor.conf /etc/supervisor/conf.d/supervisor.conf

Since there are a few files, I put all the files into a github repo. https://github.com/internetztube/cloud-run-persistent-storage-issue

gcsfuse google-cloud-run google-cloud-storage docker
1 Answers

Update:

I solved it mounting GCS bucket in Cloud Run and read/write of object with the following changes:

  • Dockerfile:
# https://github.com/chiaen/docker-gcsfuse
FROM golang:1.17.5-alpine as gcsfuse
RUN apk add --no-cache git
ENV GOPATH /go
RUN go get -u github.com/googlecloudplatform/gcsfuse

FROM composer:2 as vendor
COPY composer.json composer.json
COPY composer.lock composer.lock
RUN composer install --ignore-platform-reqs --no-interaction --prefer-dist

FROM craftcms/nginx:7.4

ENV MNT_DIR /mnt/gcs

USER root
RUN apk add --no-cache mysql-client postgresql-client ca-certificates fuse nano sudo tini bash
RUN mkdir -p $MNT_DIR
RUN chown www-data:www-data $MNT_DIR

COPY --chown=www-data:www-data --from=vendor /app/vendor/ /app/vendor/
COPY --chown=www-data:www-data . .
COPY --from=gcsfuse /go/bin/gcsfuse /usr/local/bin
COPY supervisor.conf /etc/supervisor/conf.d/supervisor.conf
  • Added -file-mode=777 -dir-mode=777 together with gcsfuse command in gcsfuse.sh to enable read/write inside the mounted directory of GCS bucket:
gcsfuse -o rw,allow_other -file-mode=777 -dir-mode=777 --foreground --debug_http --debug_gcs --debug_fuse --implicit-dirs $DISK_BUCKET $MNT_DIR
  • Hardcoding the path (/mnt/gcs/demo.txt instead of ../storage/demo.txt) for testing in the file web/index.php.

Screenshot output:

enter image description here

user_87539910
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