Merge pull request #3 from duyhenryer/feat/tools

Add more tools

.github/workflows/pr-build.yml

@@ -0,0 +1,33 @@
+name: PR-Build
+
+run-name: PR Build Image
+
+on:
+  pull_request:
+    branches: ['main']
+
+jobs:
+  pr-build:
+    # https://github.com/actions/runner-images
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm64,amd64
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}
+
+      - name: Run Buildx
+        run: |
+          docker buildx build \
+            --platform linux/amd64,linux/arm64 \
+            --output "type=image,push=false" \
+            --file ./Dockerfile .

Dockerfile

@@ -39,4 +39,7 @@ RUN apk add --no-cache --update \
     bind-tools \
     busybox-extras \
     lz4 zstd \
-    vim
+    vim \
+    openssl \
+    ipset \
+    ripgrep

README.md

@@ -59,4 +59,19 @@ kubectl exec -it nettools -n default bash
 
 ```sh
 docker run -it ghcr.io/duyhenryer/nettools:2.0.1 sh
+```
+
+#### Sample Use-cases
+
+`tcpdump` is a powerful and common packet analyzer that runs under the command line. 
+It allows the user to display TCP/IP and other packets being transmitted or received over an attached network interface.
+
+```sh
+tcpdump -i eth0 port 9999 -c 1 -Xvv
+```
+More info on tcpdump can be found [here](http://www.tcpdump.org/tcpdump_man.html).
+
+`netstat` is a useful tool for checking your network configuration and activity.
+```sh
+netstat -tulpn
 ```