Once running a docker build I ran into the error:
docker build --rm -t project-backend:06b1206 .
Sending build context to Docker daemon 994.7MB
Step 1/28 : FROM microsoft/dotnet:2.2-aspnetcore-runtime AS base
---> e7e3b238011c
Step 2/28 : WORKDIR /app
---> Using cache
---> 574c81257103
Step 3/28 : EXPOSE 80
---> Using cache
---> 5baf6a10ad9c
Step 4/28 : EXPOSE 443
---> Using cache
---> 9d594ac86e87
Step 5/28 : FROM microsoft/dotnet:2.2-sdk AS build
---> 2357b6790b9d
Step 6/28 : WORKDIR /src
---> Running in 838f2f3867df
lstat /var/lib/docker/overlay2/33422fae8a965ca440e31356a063df374eb72ea9b3f34f13c93ed67fdadb938c/merged/src: stale NFS file handle
root@dev1de:~/project/project-backend#
running docker image prune and docker container prune did not fix the issue. looking at mount also didn’t bring any issue
docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
<none> <none> d5102775961b 14 seconds ago 261MB
microsoft/dotnet 2.2-sdk 2357b6790b9d 4 days ago 1.74GB
microsoft/dotnet 2.2-aspnetcore-runtime e7e3b238011c 4 days ago 261MB
busybox latest 6d5fcfe5ff17 6 days ago 1.22MB
ubuntu latest 549b9b86cb8d 2 weeks ago 64.2MB
portainer/portainer latest ff4ee4caaa23 4 weeks ago 81.6MB
Still, there are 4 images that did not clear, very odd! and apparently I must do a docker image prune -a (with a -a was trick!).
root@dev1de:~/project/project-backend# docker image prune
WARNING! This will remove all dangling images.
Are you sure you want to continue? [y/N] y
Deleted Images:
deleted: sha256:d5102775961bf17f1a0df5f7060dccb4faeb2d9b48df3c56885d00a849b3baa1
deleted: sha256:4a42287044968cee892d85562b8cde4d47f407200b448d6cb3b5f6d16c97102e
deleted: sha256:12224d4127a1280e5bcf9dd0ae49e7222160db17ca6bbe327eabfdae3eac6b06
deleted: sha256:4a3b05eaf2cbf42b455a1c40c269baca75908fe85482a58828cf01f4a039db10