Guy Chait gchait
gchait
/ android-debloat.sh
Last active
December 15, 2025 21:12
Debloat matching packages via ADB without root
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| #!/bin/bash -eu | |
| set -o pipefail | |
| readonly USER_ID=0 | |
| list_packages() { | |
| local flags="${1:-}" | |
| local cmd=(adb shell cmd package list packages --user "${USER_ID}") | |
| [[ -n "${flags}" ]] && cmd+=("${flags}") |
gchait
/ spark-cpu-ms.sh
Created
December 14, 2025 18:23
Sum the CPU time an Apache Spark Application took
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| curl -s https://xxx.yyy.com:18080/api/v1/applications/app-zzz-123/stages | \ | |
| jq '[ .[] | .executorCpuTime // 0 ] | add / 1e6' |
gchait
/ aws-profile-from-acc.sh
Created
December 13, 2025 13:25
Set AWS profile given an account ID
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| export AWS_PROFILE=$(grep -B20 "${ACCOUNT_ID}" ~/.aws/config | \ | |
| grep "^\[" | tail -1 | tr -d "[]" | awk '{print $NF}') |
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| mkdir -p xxx | |
| cd ./xxx | |
| git init -q | |
| git remote add origin git@aaa.zzz.com:yyy/xxx.git | |
| git fetch origin "${SHA}" | |
| git checkout -q FETCH_HEAD |
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| echo 'public class X{public static void main(String[]a)throws Exception{System.out.println(java.net.InetAddress.getLocalHost().getCanonicalHostName());}}' > X.java \ | |
| && javac X.java && java X && rm X.java X.class |
gchait
/ provision-with-sudo.sh
Created
December 13, 2025 12:50
Run many functions as root with injected environment variables
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| provision() { | |
| xx() { | |
| : | |
| } | |
| yy() { | |
| : | |
| } | |
| zz() { |
gchait
/ msk-privatelink.tf
Created
December 13, 2025 12:46
An old and involved way to PrivateLink MSK brokers
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| locals { | |
| broker_fqdns = [for broker in split(",", aws_msk_cluster.kafka.bootstrap_brokers_tls) : | |
| trimsuffix(broker, ":${var.msk_port}")] | |
| broker_addrs = { for broker in data.dns_a_record_set.brokers : broker.addrs[0] => broker.host } | |
| pl_relevant_enis = (var.enable_privatelink ? [for eni in data.aws_network_interface.brokers : | |
| merge({ public_fqdn = local.broker_addrs[eni["private_ip"]] }, eni) | |
| if contains(keys(local.broker_addrs), eni["private_ip"])] : []) |
gchait
/ uvicorn_filter.py
Created
December 13, 2025 12:40
Hide an endpoint from Uvicorn access logs
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| class EndpointFilter(Filter): | |
| """A generic way to filter out web endpoints from the logs.""" | |
| # pylint: disable=too-few-public-methods | |
| def __init__( | |
| self, | |
| path: str, | |
| *args, | |
| **kwargs, |
gchait
/ grype_exporter.py
Created
December 13, 2025 12:28
Expose Grype-found vulnerabilities to Prometheus
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| from itertools import islice | |
| from subprocess import run | |
| from tempfile import NamedTemporaryFile | |
| from time import sleep | |
| from typing import NamedTuple | |
| import kubernetes.client | |
| import kubernetes.config | |
| import prometheus_client |
gchait
/ clean-previous-images.sh
Created
December 13, 2025 12:22
Keep only a specific tag from a Docker repository
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| # shellcheck disable=SC2086 | |
| docker images -q "${DOCKER_REPO_FULL}" | \ | |
| grep -v "$(docker images -q ${DOCKER_IMAGE})" | \ | |
| xargs --no-run-if-empty docker rmi -f |
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