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docker-compose prepends current directory name to named volumes

docker-compose

Issues – docker-compose prepends current directory name to named volumes

What actually happens is that the named volume gets prepended with (a simplified version of) the directory name from which the docker-compose command was run.

For instance, if I run from the “dcompos-programs” directory, and I name the volume “my_named_vol”, then I end up with a volume named “dcompos-programs_my_named_vol”.

docker-compose-named-volume.yml:


version: '3'
services:

solr:
 image: alpine:3.5
 container_name: foo
 volumes:
 - my_named_vol:/opt/foo
volumes:
 my_named_vol:

Result:


$ docker-compose -f docker-compose-named-volume.yml up -d && \
> echo "## named volume:" && \
> docker volume ls | grep my_named_vol && \
> echo "## stop" && \
> docker-compose -f docker-compose-named-volume.yml down && \
> echo "## rm volume" && \
> docker volume rm $(docker volume ls | grep my_named_vol | awk '{print $2}')
Creating network "deploymentroot_default" with the default driver
Creating volume "dcompos-programs_my_named_vol" with default driver
Creating foo

Answer
docker-compose uses a project name. By default it’s the directory name which prevents collisions with existing containers. But you can use -p to change the prefix name.

You can use the external volume setting to avoid the prefix.
https://docs.docker.com/compose/compose-file/#external

Tagged : /

Kubernetes minikube errors and Solutions

Error 1 – Error starting host:  Error getting state for host: machine does not exist

<p style="font-weight: 400;">D:\kubernete>minikube-windows-amd64.exe start --kubernetes-version="v1.8.0" --vm</p>
<p style="font-weight: 400;">-driver="virtualbox" --alsologtostderr</p>
<p style="font-weight: 400;">W0110 <span data-term="goog_1571914274">12:16:04.517163</span>   10504 root.go:148] Error reading config file at C:\Users</p>
<p style="font-weight: 400;">\panan4\.minikube\config\config.json: open C:\Users\panan4\.minikube\config\conf</p>
<p style="font-weight: 400;">ig.json: The system cannot find the file specified.</p>
<p style="font-weight: 400;">I0110 <span data-term="goog_1571914275">12:16:04.528163</span>   10504 notify.go:109] Checking for updates...</p>
<p style="font-weight: 400;">I0110 <span data-term="goog_1571914276">12:16:05.901354</span>   10504 cache_images.go:290] Attempting to cache image: gc</p>
<p style="font-weight: 400;"><a href="http://r.io/k8s-minikube/storage-provisioner:v1.8.0" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://r.io/k8s-minikube/storage-provisioner:v1.8.0&source=gmail&ust=1515821717506000&usg=AFQjCNHilUJGRCqAxx0Naa3yTEDGQ9X2Dw">r.io/k8s-minikube/storage-provisioner:v1.8.0</a> at C:\Users\panan4\.minikube\cache\</p>
<p style="font-weight: 400;">images\<a href="http://gcr.io/" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://gcr.io&source=gmail&ust=1515821717506000&usg=AFQjCNHwyTmXfOb8jcAGQbTDyIr_DuEirg">gcr.io</a>\k8s-minikube\storage-provisioner_v1.8.0</p>
<p style="font-weight: 400;">I0110 <span data-term="goog_1571914277">12:16:05.901354</span>   10504 cache_images.go:290] Attempting to cache image: gc</p>
<p style="font-weight: 400;"><a href="http://r.io/google_containers/k8s-dns-dnsmasq-nanny-amd64:1.14.5" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://r.io/google_containers/k8s-dns-dnsmasq-nanny-amd64:1.14.5&source=gmail&ust=1515821717506000&usg=AFQjCNFAVT9yppX_1usJ2E0YbShOwXUE9A">r.io/google_containers/k8s-dns-dnsmasq-nanny-amd64:1.14.5</a> at C:\Users\panan4\.mi</p>
<p style="font-weight: 400;">nikube\cache\images\<a href="http://gcr.io/" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://gcr.io&source=gmail&ust=1515821717507000&usg=AFQjCNF--H_EnOHq-1gORX9rvCyL0guvAA">gcr.io</a>\google_containers\k8s-dns-dnsmasq-nanny-amd64_1.14.5</p>
<p style="font-weight: 400;">Starting local Kubernetes v1.8.0 cluster...</p>
<p style="font-weight: 400;">Starting VM...</p>
<p style="font-weight: 400;">I0110 <span data-term="goog_1571914278">12:16:05.901354</span>   10504 cluster.go:74] Skipping create...Using existing ma</p>
<p style="font-weight: 400;">chine configuration</p>
<p style="font-weight: 400;">I0110 <span data-term="goog_1571914279">12:16:05.901354</span>   10504 cache_images.go:290] Attempting to cache image: gc</p>
<p style="font-weight: 400;"><a href="http://r.io/google_containers/kubernetes-dashboard-amd64:v1.6.3" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://r.io/google_containers/kubernetes-dashboard-amd64:v1.6.3&source=gmail&ust=1515821717507000&usg=AFQjCNERLC4qpuUBrUqm5OvSjac96pWNKw">r.io/google_containers/kubernetes-dashboard-amd64:v1.6.3</a> at C:\Users\panan4\.min</p>
<p style="font-weight: 400;">ikube\cache\images\<a href="http://gcr.io/" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://gcr.io&source=gmail&ust=1515821717507000&usg=AFQjCNF--H_EnOHq-1gORX9rvCyL0guvAA">gcr.io</a>\google_containers\kubernetes-dashboard-amd64_v1.6.3</p>
<p style="font-weight: 400;">I0110 <span data-term="goog_1571914280">12:16:05.901354</span>   10504 cache_images.go:290] Attempting to cache image: gc</p>
<p style="font-weight: 400;"><a href="http://r.io/google_containers/k8s-dns-kube-dns-amd64:1.14.5" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://r.io/google_containers/k8s-dns-kube-dns-amd64:1.14.5&source=gmail&ust=1515821717507000&usg=AFQjCNFhurp_V-c-NFhO73j_Zjakc4fptw">r.io/google_containers/k8s-dns-kube-dns-amd64:1.14.5</a> at C:\Users\panan4\.minikub</p>
<p style="font-weight: 400;">e\cache\images\<a href="http://gcr.io/" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://gcr.io&source=gmail&ust=1515821717507000&usg=AFQjCNF--H_EnOHq-1gORX9rvCyL0guvAA">gcr.io</a>\google_containers\k8s-dns-kube-dns-amd64_1.14.5</p>
<p style="font-weight: 400;">I0110 <span data-term="goog_1571914281">12:16:05.901354</span>   10504 cache_images.go:290] Attempting to cache image: gc</p>
<p style="font-weight: 400;"><a href="http://r.io/google-containers/kube-addon-manager:v6.4-beta.2" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://r.io/google-containers/kube-addon-manager:v6.4-beta.2&source=gmail&ust=1515821717507000&usg=AFQjCNEFsklfJPJCpLyEX7qsaLsvUDDRow">r.io/google-containers/kube-addon-manager:v6.4-beta.2</a> at C:\Users\panan4\.miniku</p>
<p style="font-weight: 400;">be\cache\images\<a href="http://gcr.io/" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://gcr.io&source=gmail&ust=1515821717507000&usg=AFQjCNF--H_EnOHq-1gORX9rvCyL0guvAA">gcr.io</a>\google-containers\kube-addon-manager_v6.4-beta.2</p>
<p style="font-weight: 400;">I0110 <span data-term="goog_1571914282">12:16:05.901354</span>   10504 cache_images.go:290] Attempting to cache image: gc</p>
<p style="font-weight: 400;"><a href="http://r.io/google_containers/k8s-dns-sidecar-amd64:1.14.5" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://r.io/google_containers/k8s-dns-sidecar-amd64:1.14.5&source=gmail&ust=1515821717507000&usg=AFQjCNEOfewUFCow70i9iSK2lBFDahW47A">r.io/google_containers/k8s-dns-sidecar-amd64:1.14.5</a> at C:\Users\panan4\.minikube</p>
<p style="font-weight: 400;">\cache\images\<a href="http://gcr.io/" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://gcr.io&source=gmail&ust=1515821717507000&usg=AFQjCNF--H_EnOHq-1gORX9rvCyL0guvAA">gcr.io</a>\google_containers\k8s-dns-sidecar-amd64_1.14.5</p>
<p style="font-weight: 400;">I0110 <span data-term="goog_1571914283">12:16:05.901354</span>   10504 cache_images.go:290] Attempting to cache image: gc</p>
<p style="font-weight: 400;"><a href="http://r.io/google_containers/pause-amd64:3.0" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://r.io/google_containers/pause-amd64:3.0&source=gmail&ust=1515821717507000&usg=AFQjCNF2E15ZIwSbjHDnD4zxOcapo39PIQ">r.io/google_containers/pause-amd64:3.0</a> at C:\Users\panan4\.minikube\cache\images</p>
<p style="font-weight: 400;">\<a href="http://gcr.io/" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://gcr.io&source=gmail&ust=1515821717507000&usg=AFQjCNF--H_EnOHq-1gORX9rvCyL0guvAA">gcr.io</a>\google_containers\pause-amd64_3.0</p>
<p style="font-weight: 400;">I0110 <span data-term="goog_1571914284">12:16:05.911354</span>   10504 cache_images.go:78] Successfully cached all images</p>
<p style="font-weight: 400;">.</p>
<p style="font-weight: 400;">I0110 <span data-term="goog_1571914285">12:16:06.292552</span>   10504 cluster.go:83] Machine state:  Error</p>
<p style="font-weight: 400;">E0110 <span data-term="goog_1571914286">12:16:06.292552</span>   10504 start.go:150] Error starting host: Error getting s</p>
<p style="font-weight: 400;">tate for host: machine does not exist.</p>
<p style="font-weight: 400;"></p>
<p style="font-weight: 400;">Retrying.</p>
<p style="font-weight: 400;">E0110 <span data-term="goog_1571914287">12:16:06.292552</span>   10504 start.go:156] Error starting host:  Error getting</p>
<p style="font-weight: 400;">state for host: machine does not exist</p>
<p style="font-weight: 400;">================================================================================</p>
<p style="font-weight: 400;"></p>
<p style="font-weight: 400;">An error has occurred. Would you like to opt in to sending anonymized crash</p>
<p style="font-weight: 400;">information to minikube to help prevent future errors?</p>
<p style="font-weight: 400;">To opt out of these messages, run the command:</p>
<p style="font-weight: 400;">        minikube config set WantReportErrorPrompt false</p>
<p style="font-weight: 400;">================================================================================</p>

Solutions

Please use/install minikube in the c drive.

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