new CLI way to mint NOMAD_TOKEN that are namespace limited (esp. nice…

… for older clusters w/o GUI to make)

bin/token-maker.sh

@@ -0,0 +1,53 @@
+#!/bin/zsh -eux
+
+# Creates a lessor-scoped `NOMAD_TOKEN` that can be used with
+# CI/CD custom var: `NOMAD_VAR_NAMESPACE`
+# https://gitlab.com/internetarchive/nomad#custom-namespacing
+# that can give full access to only deploys in the `NOMAD_VAR_NAMESPACE`
+
+NAMESPACE=${1:?"Usage: <namespace to use, eg: ait>"}
+
+# create new policy
+echo 'namespace "'$NAMESPACE'" { policy="write" }' \
+  | nomad acl policy apply $NAMESPACE -
+
+
+# create namespace
+DRIVER=podman
+if [ "$NOMAD_ADDR" = "https://prod.archive.org" ]; then
+  DRIVER=docker
+fi
+echo '
+name = "'$NAMESPACE'"
+description = "'$NAMESPACE' only access"
+capabilities {
+  enabled_task_drivers   = ["docker", "podman", "raw_exec"]
+  disabled_task_drivers  = []
+}
+meta {
+}
+' |tee x.hcl
+nomad namespace apply x.hcl
+rm x.hcl
+
+
+# create token
+mkdir -p ~/.config/
+TOK=$(nomad acl token create -name=$NAMESPACE -policy=$NAMESPACE -type=client \
+  | grep -F 'Secret ID' |cut -f2- -d= |tr -d ' ')
+(
+  echo "export NOMAD_ADDR=$NOMAD_ADDR"
+  echo "export NOMAD_TOKEN=$TOK"
+  echo "export NOMAD_NAMESPACE=$NAMESPACE"
+) |   tee ~/.config/nom-$NAMESPACE
+chmod 400 ~/.config/nom-$NAMESPACE
+
+
+# show the new setup
+nomad acl policy list
+nomad acl policy info $NAMESPACE
+
+nomad namespace list
+nomad namespace inspect $NAMESPACE
+
+nomad acl token list