Jason Stangroome jstangroome
jstangroome
/ docker-content-tag.sh
Created
April 18, 2020 11:43
Generate a tag derived from the inputs to a Docker image, without needing to build the image itself.
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| #!/bin/bash | |
| cat <<'EOF' >.dockerfile.content-tag | |
| FROM busybox:1 | |
| WORKDIR /src/ | |
| ENTRYPOINT ["/bin/sh", "-c", "find . -type f \\! -path ./.dockerfile.content-tag -exec sha256sum -b {} +"] | |
| COPY . /src/ | |
| EOF | |
| iid=$( docker image build -q -f .dockerfile.content-tag . ) |
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| #!/bin/bash | |
| print_usage () { | |
| printf 'Usage: kubectl evict -n <namespace> <pod>\n' >&2 | |
| } | |
| main () { | |
| if [ "-n" != "$1" ] && [ "--namespace" != "$1" ] | |
| then | |
| print_usage |
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| apt-get install -y \ | |
| apt-transport-https \ | |
| binutils \ | |
| build-essential \ | |
| python-pip \ | |
| socat \ | |
| sysstat \ | |
| traceroute \ | |
| unzip \ | |
| zip |
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| #!/bin/bash | |
| while read -r commit_hash | |
| do | |
| message=$( | |
| git cat-file commit "${commit_hash}" | | |
| sed '1,/^$/d' | |
| ) | |
| if [ "${message:0:5}" = 'Merge' ] || [ "${message:0:6}" = 'Revert' ] |
jstangroome
/ collect_usage_in_bytes.sh
Created
January 2, 2019 04:33
Create a CSV of each cgroup's memory.usage_in_bytes and some related memory.stat values.
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| #!/bin/bash | |
| printf '%s,%s,%s,%s,%s,%s,%s,%s\n' \ | |
| 'dir' 'usage_in_bytes' \ | |
| 'cache' 'total_cache' \ | |
| 'rss' 'total_rss' \ | |
| 'rss_huge' 'total_rss_huge' | |
| cd /sys/fs/cgroup/memory/ |
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| #!/bin/bash | |
| printf '%s,%s,%s,%s,%s,%s,%s,%s\n' \ | |
| 'dir' 'usage_in_bytes' \ | |
| 'cache' 'total_cache' \ | |
| 'rss' 'total_rss' \ | |
| 'rss_huge' 'total_rss_huge' | |
| cd /sys/fs/cgroup/memory/ |
jstangroome
/ script.sh
Created
August 21, 2018 08:19
Rewrite your Windows .kube/config to be usable by Linux kubectl inside WSL
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| #!/bin/bash | |
| win_profile_dir=$(wslpath "$(cmd.exe /c "echo %USERPROFILE%" | tr -d '\r')") | |
| win_dot_kube_dir="${win_profile_dir}/.kube" | |
| win_kube_config="${win_dot_kube_dir}/config" | |
| wsl_dot_kube_dir="${HOME}/.kube" |
jstangroome
/ minikube-docker-env-wsl.bash
Last active
November 28, 2021 08:18
Minikube on WSL helper
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| #!/bin/bash | |
| if [ "$_" = "${BASH_SOURCE}" ] | |
| then | |
| printf 'source this script, do not execute.\n' >&2 | |
| exit 1 | |
| fi | |
| eval $(minikube docker-env --shell bash) | |
| if [ -n "${DOCKER_CERT_PATH}" ] && [ "${DOCKER_CERT_PATH:0:1}" != '/' ] |
jstangroome
/ pod.yaml
Created
May 25, 2018 13:56
Example for https://www.reddit.com/r/kubernetes/comments/8m0xvv/copying_a_file_from_the_host_to_the_container/
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| apiVersion: v1 | |
| kind: Pod | |
| metadata: | |
| name: example | |
| spec: | |
| initContainers: | |
| - name: file-copy | |
| image: busybox:latest | |
| command: | |
| - cp |
jstangroome
/ docker-readme
Last active
June 30, 2020 08:51
Container memory limits as visible to container process
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| # docker 17.12.1-ce | |
| => docker run | |
| ==> /sys/fs/cgroup/memory/memory.kmem.limit_in_bytes <== | |
| 18446744073709551615 | |
| ==> /sys/fs/cgroup/memory/memory.kmem.tcp.limit_in_bytes <== | |
| 18446744073709551615 | |
| ==> /sys/fs/cgroup/memory/memory.limit_in_bytes <== | |
| 18446744073709551615 |