zalando-incubator/kubernetes-on-aws
Dec 2024 – Aug 2025
3 Months active
Languages Used
yamlYAML
Technical Skills
Cloud InfrastructureInfrastructure as CodeKubernetesDevOpsAWSConfiguration Management
Mahmoud Gaballah
PROFILE
Mahmoud Gaballah
Worked on the zalando-incubator/kubernetes-on-aws repository, delivering three focused infrastructure features over three months. Built a Karpenter Not-Specified Instance Type Strategy by updating YAML-based provisioner logic, improving AWS Kubernetes cluster reliability when no explicit instance types are set. Upgraded the Cluster Autoscaler by modifying daemonset.yaml, enabling access to new autoscaling features and bug fixes with minimal disruption. Implemented architecture-aware AMI auto-resolution for the etcd cluster, replacing hardcoded AMIs with dynamic lookups for amd64 and arm64. Demonstrated expertise in Kubernetes, Infrastructure as Code, and AWS, emphasizing automation, maintainability, and cross-architecture support without introducing new bugs.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
3
Lines of code
19
Activity Months3
Your Network
56 peopleSame Organization
@zalando.de23
adetunjiakintundeakindeMember
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Aleksandr PonimaskinMember
aleksandra-mak_zseMember
Alexander YastrebovMember
Anupama BhatMember
Maciej DragunMember
Magnus JungsbluthMember
Markus WyrschMember
Shared Repositories
33
adetunjiakintundeakindeMember
Aleksandr PonimaskinMember
amak3Member
aleksandra-mak_zseMember
Alexander YastrebovMember
Katyanna MouraMember
Anupama BhatMember
greeshma1196Member
Hanno HeckerMember
Work History
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025 — Delivered architecture-aware AMI auto-resolution for etcd cluster in kubernetes-on-aws, enabling dynamic image lookups for amd64 and arm64. Replaced hardcoded AMIs, reducing manual maintenance and improving bootstrapping reliability and deployment flexibility. This work strengthens cross-architecture support and accelerates cluster provisioning in AWS-based Kubernetes deployments.
1 Commits • 1 Features
Aug 1, 2025August 2025 — Delivered architecture-aware AMI auto-resolution for etcd cluster in kubernetes-on-aws, enabling dynamic image lookups for amd64 and arm64. Replaced hardcoded AMIs, reducing manual maintenance and improving bootstrapping reliability and deployment flexibility. This work strengthens cross-architecture support and accelerates cluster provisioning in AWS-based Kubernetes deployments.
August 2025
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025: Delivered an essential Cluster Autoscaler upgrade for the Kubernetes on AWS deployment in zalando-incubator/kubernetes-on-aws. Updated the daemonset.yaml image tag to a newer internal version (commit 64bb4e15ffa2076fc67e39a8f2c7bbd69be584a2), enabling latest features and bug fixes. The roll-out was designed for minimal disruption and validated in-cluster. Result: improved autoscaling reliability and responsiveness for AWS workloads, with a clean audit trail.
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025: Delivered an essential Cluster Autoscaler upgrade for the Kubernetes on AWS deployment in zalando-incubator/kubernetes-on-aws. Updated the daemonset.yaml image tag to a newer internal version (commit 64bb4e15ffa2076fc67e39a8f2c7bbd69be584a2), enabling latest features and bug fixes. The roll-out was designed for minimal disruption and validated in-cluster. Result: improved autoscaling reliability and responsiveness for AWS workloads, with a clean audit trail.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for zalando-incubator/kubernetes-on-aws. Delivered a new Karpenter Not-Specified Instance Type Strategy to improve provisioning when no explicit instance types are defined. Updated provisioners.yaml logic to apply default or custom strategies, reducing provisioning gaps and increasing cluster reliability on AWS. The work centers on a focused feature enhancement with a single commit implementing the 'not-specified' instance-types string.
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for zalando-incubator/kubernetes-on-aws. Delivered a new Karpenter Not-Specified Instance Type Strategy to improve provisioning when no explicit instance types are defined. Updated provisioners.yaml logic to apply default or custom strategies, reducing provisioning gaps and increasing cluster reliability on AWS. The work centers on a focused feature enhancement with a single commit implementing the 'not-specified' instance-types string.
December 2024
Activity
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Quality Metrics
Correctness93.4%
Maintainability93.4%
Architecture93.4%
Performance86.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
YAMLyaml
Technical Skills
AWSCloud InfrastructureConfiguration ManagementDevOpsInfrastructure as CodeKubernetes
Repositories Contributed To
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