├── README.md
├── kubectl-node_shell
└── LICENSE


/README.md:
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 1 | # kubectl node-shell
 2 | *(formerly known as **kubectl-enter**)*
 3 | 
 4 | Start a root shell in the node's host OS running.
 5 | 
 6 | ## Installation
 7 | 
 8 | ```
 9 | curl -LO https://github.com/kvaps/kubectl-node-shell/raw/master/kubectl-node_shell
10 | chmod +x ./kubectl-node_shell
11 | sudo mv ./kubectl-node_shell /usr/local/bin/kubectl-node_shell
12 | ```
13 | 
14 | ## Usage
15 | 
16 | ```
17 | kubectl node-shell <node>
18 | ```
19 | 
20 | *You need to be able to start privileged containers for that.*
21 | 


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/kubectl-node_shell:
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 1 | #!/bin/sh
 2 | if [ -z "$1" ]; then
 3 |   echo "Please specify node name"
 4 |   exit 1
 5 | fi
 6 | 
 7 | NODE="$1"
 8 | IMAGE="alpine"
 9 | POD="nsenter-$(env LC_ALL=C tr -dc a-z0-9 < /dev/urandom | head -c 6)"
10 | NAMESPACE=""
11 | 
12 | # Check the node
13 | kubectl get node "$NODE" >/dev/null || exit 1
14 | 
15 | OVERRIDES="$(cat <<EOT
16 | {
17 |   "spec": {
18 |     "nodeName": "$NODE",
19 |     "hostPID": true,
20 |     "containers": [
21 |       {
22 |         "securityContext": {
23 |           "privileged": true
24 |         },
25 |         "image": "$IMAGE",
26 |         "name": "nsenter",
27 |         "stdin": true,
28 |         "stdinOnce": true,
29 |         "tty": true,
30 |         "command": [ "nsenter", "--target", "1", "--mount", "--uts", "--ipc", "--net", "--pid", "--", "bash", "-l" ]
31 |       }
32 |     ]
33 |   }
34 | }
35 | EOT
36 | )"
37 | 
38 | echo "spawning \"$POD\" on \"$NODE\""
39 | kubectl run --namespace "$NAMESPACE" --rm --image alpine --overrides="$OVERRIDES" --generator=run-pod/v1 -ti "$POD"
40 | 


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