Added mirror support to avoid hitting remote constantly

devtools/push-dep-pkg-mirror.sh

@@ -0,0 +1,80 @@
+#!/bin/sh
+set -eu
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+NAMESPACE="${NAMESPACE:-default}"
+PACKAGES_DIR="$(realpath "$SCRIPT_DIR/../packages/")"
+APP_LABEL="${APP_LABEL:-app=dep-pkg-mirror}"
+CONTAINER="${CONTAINER:-nginx}"
+REMOTE_DIR="${REMOTE_DIR:-/usr/share/nginx/html/monok8s/packages}"
+
+if [ ! -d "$PACKAGES_DIR" ]; then
+    echo "error: package dir not found: $PACKAGES_DIR" >&2
+    exit 1
+fi
+
+need_cmd() {
+    command -v "$1" >/dev/null 2>&1 || {
+        echo "error: missing command: $1" >&2
+        exit 1
+    }
+}
+
+need_cmd kubectl
+need_cmd mktemp
+need_cmd tar
+need_cmd cp
+need_cmd find
+
+pod="$(
+    kubectl -n "$NAMESPACE" get pod \
+        -l "$APP_LABEL" \
+        --field-selector=status.phase=Running \
+        -o jsonpath='{.items[0].metadata.name}'
+)"
+
+if [ -z "$pod" ]; then
+    echo "error: no running pod found with label: $APP_LABEL in namespace: $NAMESPACE" >&2
+    exit 1
+fi
+
+echo "using pod: $pod"
+echo "remote dir: $REMOTE_DIR"
+
+echo "checking remote dir is writable"
+kubectl -n "$NAMESPACE" exec "$pod" -c "$CONTAINER" -- sh -c "
+    mkdir -p '$REMOTE_DIR' &&
+    touch '$REMOTE_DIR/.write-test' &&
+    rm -f '$REMOTE_DIR/.write-test'
+"
+
+stage="$(mktemp -d)"
+cleanup() {
+    rm -rf "$stage"
+}
+trap cleanup EXIT INT TERM
+
+mkdir -p "$stage/packages"
+
+echo "staging $PACKAGES_DIR/ as packages/"
+tar \
+    --exclude='.DS_Store' \
+    --exclude='.stamp-*' \
+    -C "$PACKAGES_DIR" \
+    -cf - . | tar -C "$stage/packages" -xf -
+
+echo "copying staged packages into mirror pod"
+kubectl -n "$NAMESPACE" cp \
+    "$stage/packages/." \
+    "$pod:$REMOTE_DIR" \
+    -c "$CONTAINER"
+
+echo "done"
+echo
+echo "Mirror base URL:"
+echo "  DEP_PKG_MIRROR=http://dep-pkg-mirror.${NAMESPACE}.svc.cluster.local/monok8s"
+echo
+echo "Example:"
+echo "  packages/kubernetes/kubelet-v1.35.3"
+echo "  -> http://dep-pkg-mirror.${NAMESPACE}.svc.cluster.local/monok8s/packages/kubernetes/kubelet-v1.35.3"