inspektor-gadget 정리

https://krew.sigs.k8s.io/docs/user-guide/setup/install/
https://github.com/inspektor-gadget/inspektor-gadget

krew다운

  set -x; cd "$(mktemp -d)" &&
  OS="$(uname | tr '[:upper:]' '[:lower:]')" &&
  ARCH="$(uname -m | sed -e 's/x86_64/amd64/' -e 's/\(arm\)\(64\)\?.*/\1\2/' -e 's/aarch64$/arm64/')" &&
  KREW="krew-${OS}_${ARCH}" &&
  curl -fsSLO "https://github.com/kubernetes-sigs/krew/releases/latest/download/${KREW}.tar.gz" &&
  tar zxvf "${KREW}.tar.gz" &&
  ./"${KREW}" install krew

환경변수 설정

export PATH="${KREW_ROOT:-$HOME/.krew}/bin:$PATH"

gadget 설치

kubectl krew install gadget

gadget 실행

kubectl gadget deploy

파드에서 dns질의가 어떻게 진행되는지

kubectl gadget trace dns -n [ns] or -A