Getting Permission denied error while installing grafana in docker container - docker

Question

I am trying to install grafana in docker container but getting permission denied error. Below are the details :
sudo docker build -t grafana:latest .
Sending build context to Docker daemon 5.12 kB
Step 1/8 : FROM grafana/grafana:6.3.5
---> 2017e1eb54fa
Step 2/8 : RUN apt-get update && apt-get install -y curl gettext-base && rm -rf /var/lib/apt/lists/*
---> Running in 4c3b0835bb22
Reading package lists...
E: List directory /var/lib/apt/lists/partial is missing. - Acquire (13: Permission denied)
The command '/bin/sh -c apt-get update && apt-get install -y curl gettext-base && rm -rf /var/lib/apt/lists/*' returned a non-zero code: 100
I have tried running it using sudo but that didn't work. Also I have tried
RUN sudo apt-get update && apt-get install -y curl gettext-base && rm -rf /var/lib/apt/lists/*
but this also didn't work.
Below is the dockerfile
FROM grafana/grafana:6.3.5
RUN apt-get update && apt-get install -y curl gettext-base && rm -rf /var/lib/apt/lists/*
WORKDIR /etc/grafana
COPY datasources ./datasources
WORKDIR /app
COPY entrypoint.sh ./
RUN chmod u+x entrypoint.sh
ENTRYPOINT ["/app/entrypoint.sh"]

Answer 1

try this:
FROM grafana/grafana:6.3.5
USER root
RUN apt-get update && apt-get install -y curl gettext-base && rm -rf /var/lib/apt/lists/*
USER grafana
WORKDIR /etc/grafana
COPY datasources ./datasources
WORKDIR /app
COPY entrypoint.sh ./
RUN chmod u+x entrypoint.sh
ENTRYPOINT ["/app/entrypoint.sh"]
the image use the default user: grafana

Answer 2

You can try docker commit to make your changes permanent. it's easier than build a new image with dockerfile.
first you should go inside container, then make your changes like upgrading or changing configs and finally commit changes.
host$ docker exec -it "container_name/id" bash
container# apt-get update
host$ docker commit "container_name/id" my-grafana
You can see image list with docker image ls