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+---
+title: Installation Guide
+description: A guide for installing Otterscale.
+---
+
+# OtterScale Installation Guide
+
+## System Requirements
+
+### Operating System
+- **Ubuntu 24.04 LTS** (Required)
+
+### Hardware Requirements
+- **Memory:** Minimum 8 GB RAM
+- **Disk Space:** Minimum 100 GB available storage
+
+### Network Requirements
+- At least one network interface with external internet connectivity
+- The installation script will check for network bridge `br-otters`:
+  - If the bridge exists, it will be used
+  - If the bridge does not exist, the script will prompt to select an existing bridge or create a new one automatically
+
+## Firewall Configuration
+
+The installation process requires access to various external services. Please ensure the following domains and ports are accessible through your firewall:
+
+### Canonical Services
+
+**TCP Port 443 (HTTPS):**
+- api.charmhub.io
+- api.jujucharms.com
+- changelogs.ubuntu.com
+- charmhub.io
+- cloud-images.ubuntu.com
+- maas.ubuntu.com
+- images.maas.io
+- juju.is
+- jaas.ai
+- streams.canonical.com
+- objects.githubusercontent.com
+- contracts.canonical.com
+
+**TCP Port 80 (HTTP):**
+- images.maas.io
+
+### Snap Package Management
+
+**TCP Port 443 (HTTPS):**
+- snapcraft.io
+- api.snapcraft.io
+- storage.snapcraftcontent.com
+- canonical-lgw01.cdn.snapcraftcontent.com
+- canonical-lcy01.cdn.snapcraftcontent.com
+- canonical-lcy02.cdn.snapcraftcontent.com
+- canonical-bos01.cdn.snapcraftcontent.com
+
+### Ubuntu Package Repositories
+
+**TCP Ports 443 and 80 (HTTPS/HTTP):**
+- tw.archive.ubuntu.com
+- archive.ubuntu.com
+- ports.ubuntu.com
+- security.ubuntu.com
+- esm.ubuntu.com
+
+### GitHub and OtterScale
+
+**TCP Ports 443 and 80 (HTTPS/HTTP):**
+- otterscale.github.io
+- otterscale.com
+- raw.githubusercontent.com
+- github.com
+
+### Istio Service Mesh
+
+**TCP Port 443 (HTTPS):**
+- istio.io
+
+### Kubernetes and Container Registries
+
+**TCP Port 443 (HTTPS):**
+- registry.k8s.io
+- k8s.gcr.io
+- ghcr.io
+- d39mqg4b1dx9z1.cloudfront.net (registry.k8s.io CDN)
+- storage.googleapis.com
+
+### Docker Registry
+
+**TCP Port 443 (HTTPS):**
+- auth.docker.io
+- auth.docker.com
+- login.docker.com
+- cdn.auth0.com
+- docker.io
+- hub.docker.com
+- registry-1.docker.io
+- index.docker.io
+- production.cloudflare.docker.com
+- docker-images-prod.6aa30f8b08e16409b46e0173d6de2f56.r2.cloudflarestorage.com
+
+### NVIDIA Container Registry
+
+**TCP Port 443 (HTTPS):**
+- nvcr.io
+
+### Alternative Container Registries
+
+**TCP Port 443 (HTTPS):**
+- registry.cn-hangzhou.aliyuncs.com
+
+### HuggingFace Model Repository
+
+**TCP Port 443 (HTTPS):**
+- huggingface.co
+- cdn-lfs.huggingface.co
+- cdn.huggingface.co
+
+### Red Hat Registries
+
+**TCP Port 443 (HTTPS):**
+- registry.redhat.io
+- quay.io
+- registry.access.redhat.com
+
+### Helm Chart Repositories
+
+**TCP Port 443 (HTTPS):**
+- charts.jetstack.io (Cert-manager)
+- charts.bitnami.com (Bitnami charts)
+- open-feature.github.io (OpenFeature operator)
+- prometheus-community.github.io (Prometheus)
+- project-hami.github.io (HAMi GPU device plugin)
+- helm.ngc.nvidia.com (NVIDIA Helm charts)
+- llm-d.ai (LLM-D charts)