{"id":50574,"date":"2025-07-22T10:42:11","date_gmt":"2025-07-22T10:42:11","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=50574"},"modified":"2025-07-23T04:36:23","modified_gmt":"2025-07-23T04:36:23","slug":"kubernetes-how-to-run-a-pod-and-get-the-egress-ip-address-kuberneteseks","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/kubernetes-how-to-run-a-pod-and-get-the-egress-ip-address-kuberneteseks\/","title":{"rendered":"Kubernetes: How to Run a Pod and Get the EGRESS IP Address KubernetesEKS"},"content":{"rendered":"\n

<\/p>\n\n\n\n

1. Deploy a Pod to Your Cluster<\/h2>\n\n\n\n

You can launch a simple Pod using the kubectl run<\/code> command. For example, to run an NGINX Pod:<\/p>\n\n\n\n

bashkubectl run my-nginx --image=nginx --restart=Never\n<\/code><\/pre>\n\n\n\n
Wait until the pod is in the Running<\/code> state:<\/p>\n\n\n\n
bashkubectl get pod my-nginx -o wide\n<\/code><\/pre>\n\n\n\n
2. Get Pod EGRESS IP Address<\/h2>\n\n\n\n
To determine the IP address seen by external services (egress\/source IP), execute the following steps:<\/p>\n\n\n\n
Step A: Get a Shell Inside the Pod<\/h2>\n\n\n\n
kubectl exec -it my-nginx -- \/bin\/sh
<\/code><\/pre>\n\n\n\n
(If \/bin\/sh<\/code> is not present, replace with \/bin\/bash<\/code> or use another pod\/container image that has a shell.)<\/em><\/p>\n\n\n\n
Step B: Query an External Service for the Pod’s Egress IP<\/h2>\n\n\n\n
Within the pod shell, run:<\/p>\n\n\n\n
curl https:\/\/ifconfig.me
<\/code><\/pre>\n\n\n\n
or<\/p>\n\n\n\n
textcurl https:\/\/api.ipify.org\n<\/code><\/pre>\n\n\n\n
    \n
  • The response will be the egress\/public IP<\/strong> as seen by the Internet.<\/li>\n\n\n\n
  • This will usually be:\n
      \n
    • The EC2 node’s public IP address if your nodes are in a public subnet<\/strong>, or<\/li>\n\n\n\n
    • The NAT Gateway’s Elastic IP if your worker nodes are in private subnets<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n
      If curl<\/code> is not installed in the container, you can:<\/p>\n\n\n\n
        \n
      • Use an image that includes curl<\/code> (e.g., ubuntu<\/code>, alpine<\/code>)<\/li>\n\n\n\n
      • Install it on-the-fly, e.g., apk add curl<\/code> in Alpine Linux or apt-get update && apt-get install curl -y<\/code> in Ubuntu.<\/li>\n<\/ul>\n\n\n\n
        3. Example Pod Command<\/h2>\n\n\n\n
        If you want to create a one-off pod with curl<\/code> available:<\/p>\n\n\n\n
        bashkubectl run tmp-curl-pod --rm -it --image=alpine --restart=Never -- sh\n# Inside the shell, run:<\/em>\napk add curl\ncurl https:\/\/ifconfig.me\nexit\n<\/code><\/pre>\n\n\n\n
        When you exit, the pod will be cleaned up automatically.<\/p>\n\n\n\n
        4. Quick Table: What Each IP Means<\/h2>\n\n\n\n
        Step<\/th>Command<\/th>Meaning<\/th><\/tr><\/thead>
        Pod internal IP<\/td>kubectl get pod my-nginx -o wide<\/code><\/td>Cluster-local Pod IP<\/td><\/tr>
        Egress\/public IP<\/td>curl https:\/\/ifconfig.me<\/code> in pod<\/td>Internet-facing source IP<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        5. What Determines Egress IP in AWS EKS?<\/h2>\n\n\n\n
          \n
        • For standard AWS EKS setups:\n
            \n
          • Public Node:<\/strong> Outbound IP is usually the node\u2019s public IP.<\/li>\n\n\n\n
          • Private Node:<\/strong> Outbound IP is the NAT Gateway\u2019s Elastic IP.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
          • If using advanced networking (like Calico with Egress IP pools or Egress Gateway), the IP could be different, but in default setups, the above holds.<\/li>\n<\/ul>\n\n\n\n
            Summary:<\/strong><\/p>\n\n\n\n
              \n
            • Deploy pod.<\/li>\n\n\n\n
            • Open a shell inside.<\/li>\n\n\n\n
            • Use curl<\/code> to an external service to print the egress\/public IP.<\/li>\n<\/ul>\n\n\n\n
              <\/p>\n","protected":false},"excerpt":{"rendered":"
              1. Deploy a Pod to Your Cluster You can launch a simple Pod using the kubectl run command. For example, to run an NGINX Pod: bashkubectl run my-nginx –image=nginx –restart=Never… <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[2],"tags":[],"class_list":["post-50574","post","type-post","status-publish","format-standard","hentry","category-uncategorised"],"_links":{"self":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/50574","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/comments?post=50574"}],"version-history":[{"count":4,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/50574\/revisions"}],"predecessor-version":[{"id":50581,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/50574\/revisions\/50581"}],"wp:attachment":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media?parent=50574"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/categories?post=50574"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/tags?post=50574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}