# Increase Virtual Memory for Elasticsearch on GKE with cloud build

**URL:** <https://discuss.elastic.co/t/increase-virtual-memory-for-elasticsearch-on-gke-with-cloud-build/301775>\
**Category:** Elastic Cloud on Kubernetes (ECK)\
**Created:** [April 6, 2022, 2:38pm UTC](https://discuss.elastic.co/t/increase-virtual-memory-for-elasticsearch-on-gke-with-cloud-build/301775 "2022-04-06T14:38:58Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![danskiyq](https://avatars.discourse-cdn.com/v4/letter/d/c67d28/32.png) [@danskiyq](https://discuss.elastic.co/u/danskiyq)\
**Post date:** [April 6, 2022, 2:38pm UTC](https://discuss.elastic.co/t/increase-virtual-memory-for-elasticsearch-on-gke-with-cloud-build/301775/1 "2022-04-06T14:38:58Z")

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I have created multi-node cluster on GKE and I was using this shell script for fixing the virtual memory on nodes [Set vm.max\_map\_count=262144 on the nodes of a GKE cluster #k8s · GitHub](https://gist.github.com/thbkrkr/bc12a3457fd0f71c5a2106b11ce8801e). I want it to be executed in my cloud builder but it just returns Permission denied (publickey). on gcloud compute ssh execution. How can I fix it?

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**Author:** ![Thibault\_Richard](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/thibault_richard/32/50513_2.png) [@Thibault\_Richard](https://discuss.elastic.co/u/Thibault_Richard)\
**Post date:** [April 6, 2022, 4:02pm UTC](https://discuss.elastic.co/t/increase-virtual-memory-for-elasticsearch-on-gke-with-cloud-build/301775/2 "2022-04-06T16:02:18Z")

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> Permission denied (publickey).

Looks like you must install valid SSH keys?

Note that there are other ways to solve this problem: [Virtual memory | Elastic Cloud on Kubernetes [2.10] | Elastic](https://www.elastic.co/guide/en/cloud-on-k8s/current/k8s-virtual-memory.html#k8s-virtual-memory).

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**Author:** ![danskiyq](https://avatars.discourse-cdn.com/v4/letter/d/c67d28/32.png) [@danskiyq](https://discuss.elastic.co/u/danskiyq)\
**Post date:** [April 6, 2022, 4:15pm UTC](https://discuss.elastic.co/t/increase-virtual-memory-for-elasticsearch-on-gke-with-cloud-build/301775/3 "2022-04-06T16:15:09Z")

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thanks for your answer! Well, it was basically trying to ssh with root user, so I added my username before instance name and it worked just fine

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**Author:** ![danskiyq](https://avatars.discourse-cdn.com/v4/letter/d/c67d28/32.png) [@danskiyq](https://discuss.elastic.co/u/danskiyq)\
**Post date:** [April 6, 2022, 4:17pm UTC](https://discuss.elastic.co/t/increase-virtual-memory-for-elasticsearch-on-gke-with-cloud-build/301775/4 "2022-04-06T16:17:38Z")

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also, for some reason solution with sysctl as InitContainer wasn't working, GKE was saying that it is forbidden to do sysctl

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [May 4, 2022, 4:17pm UTC](https://discuss.elastic.co/t/increase-virtual-memory-for-elasticsearch-on-gke-with-cloud-build/301775/5 "2022-05-04T16:17:43Z")

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