Initial file-share stack

CDK stack deploying a t4g.small EC2 instance with Samba and FileBrowser for personal file storage over the site-to-site VPN. Includes 500 GiB gp3 data volume with daily DLM snapshots.
2026-09-30 03:13:11 +00:00 · 2026-05-14 15:23:38 -04:00 · 2026-05-14 15:23:38 -04:00 · 427242499d
commit 427242499d
11 changed files with 954 additions and 0 deletions
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@ -0,0 +1,8 @@
+name: CI
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  ci:
+    uses: Sea-Haven-Industries/.github/.github/workflows/ci-typescript-cdk.yaml@main
--- a/.github/workflows/deploy.yaml
+++ b/.github/workflows/deploy.yaml
@ -0,0 +1,18 @@
+name: Deploy
+on:
+  push:
+    branches: [main]
+
+permissions:
+  id-token: write
+  contents: read
+
+concurrency:
+  group: deploy
+  cancel-in-progress: false
+
+jobs:
+  deploy:
+    uses: Sea-Haven-Industries/.github/.github/workflows/cd-cdk.yaml@main
+    secrets:
+      deploy-role-arn: ${{ secrets.AWS_DEPLOY_ROLE_ARN }}
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,5 @@
+node_modules/
+cdk.out/
+*.js
+*.d.ts
+*.js.map
--- a/README.md
+++ b/README.md
@ -0,0 +1,63 @@
+# file-share
+
+Personal file share server on AWS — Samba for macOS Finder integration and FileBrowser for web-based file management. Accessible exclusively over the site-to-site VPN.
+
+## Architecture
+
+- **EC2** — `t4g.small` (ARM64, Amazon Linux 2023) in the private subnet
+- **Samba** — SMB file share at `/data/share`, optimized for macOS (`vfs_fruit`)
+- **FileBrowser** — Web UI on port 8080, backed by the same `/data/share` directory
+- **EBS** — 500 GiB gp3 data volume (separate from root), encrypted
+- **DLM** — Daily EBS snapshots, 30-day retention
+- **SSM** — Session Manager for instance access (no SSH key)
+
+## Access
+
+Requires VPN connection to the office network (10.10.0.0/16).
+
+### Finder (SMB)
+
+1. Finder > Go > Connect to Server
+2. Enter `smb://<private-ip>/files`
+3. Authenticate with `adam` and the password from `file-share/smb-password` in Secrets Manager
+
+### FileBrowser (Web)
+
+Open `http://<private-ip>:8080` in a browser.
+
+## Secrets
+
+Both stored in AWS Secrets Manager:
+
+| Secret | Purpose |
+|---|---|
+| `file-share/smb-password` | Samba user password |
+| `file-share/filebrowser-password` | FileBrowser admin password |
+
+Create these secrets before deploying the stack:
+
+```bash
+aws secretsmanager create-secret --name file-share/smb-password --secret-string '<password>'
+aws secretsmanager create-secret --name file-share/filebrowser-password --secret-string '<password>'
+```
+
+## Deploy
+
+```bash
+npm install
+npx cdk deploy
+```
+
+The stack outputs the instance's private IP for SMB and FileBrowser access.
+
+## Expanding Storage
+
+The 500 GiB data volume can be expanded without downtime:
+
+1. Modify the volume size in `lib/file-share-stack.ts`
+2. Deploy: `npx cdk deploy`
+3. SSH into the instance via SSM and resize the filesystem:
+   ```bash
+   sudo growpart /dev/xvdf 1  # if partitioned
+   sudo resize2fs /dev/xvdf
+   ```
--- a/bin/app.ts
+++ b/bin/app.ts
@ -0,0 +1,11 @@
+#!/usr/bin/env node
+import "source-map-support/register";
+import * as cdk from "aws-cdk-lib";
+import { FileShareStack } from "../lib/file-share-stack";
+
+const app = new cdk.App();
+
+new FileShareStack(app, "file-share", {
+  stackName: "file-share",
+  env: { account: "328440206208", region: "us-east-1" },
+});
--- a/cdk.context.json
+++ b/cdk.context.json
@ -0,0 +1,47 @@
+{
+  "vpc-provider:account=328440206208:filter.vpc-id=vpc-0d3d4b67bd0cf8a68:region=us-east-1:returnAsymmetricSubnets=true": {
+    "vpcId": "vpc-0d3d4b67bd0cf8a68",
+    "vpcCidrBlock": "10.20.0.0/16",
+    "ownerAccountId": "328440206208",
+    "availabilityZones": [],
+    "vpnGatewayId": "vgw-073737d44762dffc2",
+    "subnetGroups": [
+      {
+        "name": "Private",
+        "type": "Private",
+        "subnets": [
+          {
+            "subnetId": "subnet-04e38c507e96f1926",
+            "cidr": "10.20.30.0/24",
+            "availabilityZone": "us-east-1a",
+            "routeTableId": "rtb-06a2f56f492b9b4de"
+          },
+          {
+            "subnetId": "subnet-0a0b4fc6f296dfba5",
+            "cidr": "10.20.40.0/24",
+            "availabilityZone": "us-east-1b",
+            "routeTableId": "rtb-01e152fe5cabca7d6"
+          }
+        ]
+      },
+      {
+        "name": "Public",
+        "type": "Public",
+        "subnets": [
+          {
+            "subnetId": "subnet-0eea820effe1b3ae5",
+            "cidr": "10.20.10.0/24",
+            "availabilityZone": "us-east-1a",
+            "routeTableId": "rtb-0f2232493a5c43fe8"
+          },
+          {
+            "subnetId": "subnet-0012f5895182c1580",
+            "cidr": "10.20.20.0/24",
+            "availabilityZone": "us-east-1b",
+            "routeTableId": "rtb-0f2232493a5c43fe8"
+          }
+        ]
+      }
+    ]
+  }
+}
--- a/cdk.json
+++ b/cdk.json
@ -0,0 +1,21 @@
+{
+  "app": "npx ts-node bin/app.ts",
+  "watch": {
+    "include": ["**"],
+    "exclude": [
+      "README.md",
+      "cdk*.json",
+      "**/*.d.ts",
+      "**/*.js",
+      "tsconfig.json",
+      "package*.json",
+      "node_modules",
+      "cdk.out"
+    ]
+  },
+  "context": {
+    "@aws-cdk/aws-lambda:recognizeLayerVersion": true,
+    "@aws-cdk/core:checkSecretUsage": true,
+    "@aws-cdk/core:target-partitions": ["aws"]
+  }
+}
--- a/lib/file-share-stack.ts
+++ b/lib/file-share-stack.ts
@ -0,0 +1,212 @@
+import * as cdk from "aws-cdk-lib";
+import * as ec2 from "aws-cdk-lib/aws-ec2";
+import * as iam from "aws-cdk-lib/aws-iam";
+import * as dlm from "aws-cdk-lib/aws-dlm";
+import { Construct } from "constructs";
+
+export class FileShareStack extends cdk.Stack {
+  constructor(scope: Construct, id: string, props?: cdk.StackProps) {
+    super(scope, id, props);
+
+    const vpc = ec2.Vpc.fromLookup(this, "SeaHavenVpc", {
+      vpcId: "vpc-0d3d4b67bd0cf8a68",
+    });
+
+    const privateSubnet1 = ec2.Subnet.fromSubnetAttributes(
+      this, "PrivateSubnet1", {
+        subnetId: "subnet-04e38c507e96f1926",
+        availabilityZone: "us-east-1a",
+      }
+    );
+
+    const sg = new ec2.SecurityGroup(this, "SecurityGroup", {
+      vpc,
+      securityGroupName: "file-share",
+      description: "File share - SMB and FileBrowser via VPN",
+      allowAllOutbound: true,
+    });
+
+    sg.addIngressRule(ec2.Peer.ipv4("10.10.0.0/16"), ec2.Port.tcp(445), "SMB from office VPN");
+    sg.addIngressRule(ec2.Peer.ipv4("10.20.0.0/16"), ec2.Port.tcp(445), "SMB from VPC");
+    sg.addIngressRule(ec2.Peer.ipv4("10.10.0.0/16"), ec2.Port.tcp(8080), "FileBrowser from office VPN");
+    sg.addIngressRule(ec2.Peer.ipv4("10.20.0.0/16"), ec2.Port.tcp(8080), "FileBrowser from VPC");
+
+    const role = new iam.Role(this, "InstanceRole", {
+      roleName: "file-share-instance",
+      assumedBy: new iam.ServicePrincipal("ec2.amazonaws.com"),
+      managedPolicies: [
+        iam.ManagedPolicy.fromAwsManagedPolicyName("AmazonSSMManagedInstanceCore"),
+      ],
+    });
+
+    role.addToPolicy(new iam.PolicyStatement({
+      actions: ["secretsmanager:GetSecretValue"],
+      resources: [
+        `arn:aws:secretsmanager:us-east-1:328440206208:secret:file-share/*`,
+      ],
+    }));
+
+    const userData = ec2.UserData.forLinux();
+    userData.addCommands(
+      "set -euxo pipefail",
+      "",
+      "# ── Data volume ──",
+      "DATA_DEVICE=/dev/$(lsblk -dno NAME | grep -v $(lsblk -no PKNAME $(findmnt -n -o SOURCE /) 2>/dev/null || echo xvda) | head -1)",
+      "if ! blkid \"$DATA_DEVICE\"; then",
+      "  mkfs.ext4 -L file-share-data \"$DATA_DEVICE\"",
+      "fi",
+      "mkdir -p /data",
+      "echo \"LABEL=file-share-data /data ext4 defaults,nofail 0 2\" >> /etc/fstab",
+      "mount -a",
+      "mkdir -p /data/share",
+      "",
+      "# ── Samba ──",
+      "dnf install -y samba samba-common jq",
+      "",
+      "useradd --system --no-create-home --shell /sbin/nologin adam || true",
+      "chown adam:adam /data/share",
+      "",
+      "SMB_PASSWORD=$(aws secretsmanager get-secret-value --secret-id file-share/smb-password --query SecretString --output text --region us-east-1)",
+      "(echo \"$SMB_PASSWORD\"; echo \"$SMB_PASSWORD\") | smbpasswd -s -a adam",
+      "",
+      "cat > /etc/samba/smb.conf << 'SMBEOF'",
+      "[global]",
+      "workgroup = SEAHAVEN",
+      "server string = Sea Haven File Share",
+      "security = user",
+      "map to guest = never",
+      "log file = /var/log/samba/log.%m",
+      "max log size = 1000",
+      "server min protocol = SMB3",
+      "",
+      "# macOS Finder optimizations",
+      "vfs objects = catia fruit streams_xattr",
+      "fruit:metadata = stream",
+      "fruit:model = MacSamba",
+      "fruit:posix_rename = yes",
+      "fruit:veto_appledouble = no",
+      "fruit:nfs_aces = no",
+      "fruit:wipe_intentionally_left_blank_rfork = yes",
+      "fruit:delete_empty_adfiles = yes",
+      "",
+      "[files]",
+      "path = /data/share",
+      "browseable = yes",
+      "writable = yes",
+      "valid users = adam",
+      "create mask = 0644",
+      "directory mask = 0755",
+      "SMBEOF",
+      "",
+      "systemctl enable --now smb nmb",
+      "",
+      "# ── FileBrowser ──",
+      'FB_VERSION=$(curl -sf "https://api.github.com/repos/filebrowser/filebrowser/releases/latest" | jq -r .tag_name)',
+      'FB_URL="https://github.com/filebrowser/filebrowser/releases/download/${FB_VERSION}/linux-arm64-filebrowser.tar.gz"',
+      "curl -sfL \"$FB_URL\" | tar xz -C /usr/local/bin filebrowser",
+      "chmod +x /usr/local/bin/filebrowser",
+      "",
+      "mkdir -p /etc/filebrowser",
+      "FB_PASSWORD=$(aws secretsmanager get-secret-value --secret-id file-share/filebrowser-password --query SecretString --output text --region us-east-1)",
+      "FB_HASH=$(filebrowser hash \"$FB_PASSWORD\")",
+      "",
+      "cat > /etc/filebrowser/config.json << FBEOF",
+      "{",
+      "  \"address\": \"0.0.0.0\",",
+      "  \"port\": 8080,",
+      "  \"root\": \"/data/share\",",
+      "  \"database\": \"/etc/filebrowser/filebrowser.db\",",
+      "  \"log\": \"/var/log/filebrowser.log\"",
+      "}",
+      "FBEOF",
+      "",
+      "filebrowser config init --config /etc/filebrowser/config.json",
+      "filebrowser users add admin \"$FB_PASSWORD\" --config /etc/filebrowser/config.json --perm.admin",
+      "",
+      "cat > /etc/systemd/system/filebrowser.service << 'SVCEOF'",
+      "[Unit]",
+      "Description=FileBrowser",
+      "After=network.target",
+      "",
+      "[Service]",
+      "Type=simple",
+      "ExecStart=/usr/local/bin/filebrowser --config /etc/filebrowser/config.json",
+      "Restart=always",
+      "RestartSec=5",
+      "",
+      "[Install]",
+      "WantedBy=multi-user.target",
+      "SVCEOF",
+      "",
+      "systemctl daemon-reload",
+      "systemctl enable --now filebrowser",
+    );
+
+    const instance = new ec2.Instance(this, "Instance", {
+      instanceName: "file-share",
+      vpc,
+      vpcSubnets: { subnets: [privateSubnet1] },
+      instanceType: ec2.InstanceType.of(ec2.InstanceClass.T4G, ec2.InstanceSize.SMALL),
+      machineImage: ec2.MachineImage.latestAmazonLinux2023({
+        cpuType: ec2.AmazonLinuxCpuType.ARM_64,
+      }),
+      securityGroup: sg,
+      role,
+      userData,
+      blockDevices: [
+        {
+          deviceName: "/dev/xvda",
+          volume: ec2.BlockDeviceVolume.ebs(20, {
+            volumeType: ec2.EbsDeviceVolumeType.GP3,
+            encrypted: true,
+          }),
+        },
+        {
+          deviceName: "/dev/xvdf",
+          volume: ec2.BlockDeviceVolume.ebs(500, {
+            volumeType: ec2.EbsDeviceVolumeType.GP3,
+            encrypted: true,
+          }),
+        },
+      ],
+    });
+
+    cdk.Tags.of(instance).add("file-share-backup", "true");
+
+    const dlmRole = new iam.Role(this, "DlmRole", {
+      roleName: "file-share-dlm",
+      assumedBy: new iam.ServicePrincipal("dlm.amazonaws.com"),
+      managedPolicies: [
+        iam.ManagedPolicy.fromAwsManagedPolicyName(
+          "service-role/AWSDataLifecycleManagerServiceRole"
+        ),
+      ],
+    });
+
+    new dlm.CfnLifecyclePolicy(this, "SnapshotPolicy", {
+      description: "Nightly EBS snapshots for file share data volume",
+      state: "ENABLED",
+      executionRoleArn: dlmRole.roleArn,
+      policyDetails: {
+        resourceTypes: ["INSTANCE"],
+        targetTags: [{ key: "file-share-backup", value: "true" }],
+        schedules: [{
+          name: "file-share-nightly",
+          createRule: { interval: 24, intervalUnit: "HOURS", times: ["06:00"] },
+          retainRule: { count: 30 },
+          copyTags: true,
+          tagsToAdd: [{ key: "file-share-backup", value: "true" }],
+        }],
+      },
+    });
+
+    new cdk.CfnOutput(this, "InstanceId", {
+      value: instance.instanceId,
+    });
+
+    new cdk.CfnOutput(this, "PrivateIp", {
+      value: instance.instancePrivateIp,
+      description: "Use for SMB (smb://<ip>/files) and FileBrowser (http://<ip>:8080)",
+    });
+  }
+}
--- a/package-lock.json
+++ b/package-lock.json
@ -0,0 +1,521 @@
+{
+  "name": "file-share",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "file-share",
+      "version": "1.0.0",
+      "dependencies": {
+        "aws-cdk-lib": "^2.252.0",
+        "constructs": "^10.0.0"
+      },
+      "bin": {
+        "app": "bin/app.js"
+      },
+      "devDependencies": {
+        "@types/node": "^22.0.0",
+        "aws-cdk": "^2.252.0",
+        "source-map-support": "^0.5.21",
+        "typescript": "~5.7.0"
+      }
+    },
+    "node_modules/@aws-cdk/asset-awscli-v1": {
+      "version": "2.2.273",
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+      "license": "Apache-2.0"
+    },
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
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+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
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+        "type": "github",
+        "url": "https://github.com/sponsors/epoberezkin"
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+    },
+    "node_modules/aws-cdk-lib/node_modules/ansi-regex": {
+      "version": "5.0.1",
+      "inBundle": true,
+      "license": "MIT",
+      "engines": {
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+    },
+    "node_modules/undici-types": {
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+}
--- a/package.json
+++ b/package.json
@ -0,0 +1,24 @@
+{
+  "name": "file-share",
+  "version": "1.0.0",
+  "bin": {
+    "app": "bin/app.js"
+  },
+  "scripts": {
+    "build": "tsc",
+    "cdk": "cdk",
+    "synth": "cdk synth",
+    "deploy": "cdk deploy",
+    "diff": "cdk diff"
+  },
+  "devDependencies": {
+    "@types/node": "^22.0.0",
+    "aws-cdk": "^2.252.0",
+    "source-map-support": "^0.5.21",
+    "typescript": "~5.7.0"
+  },
+  "dependencies": {
+    "aws-cdk-lib": "^2.252.0",
+    "constructs": "^10.0.0"
+  }
+}
--- a/tsconfig.json
+++ b/tsconfig.json
@ -0,0 +1,24 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "commonjs",
+    "lib": ["ES2022"],
+    "types": ["node"],
+    "declaration": true,
+    "strict": true,
+    "noImplicitAny": true,
+    "strictNullChecks": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true,
+    "inlineSourceMap": true,
+    "inlineSources": true,
+    "strictPropertyInitialization": false,
+    "outDir": "./cdk.out",
+    "rootDir": ".",
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+    "resolveJsonModule": true,
+    "esModuleInterop": true
+  },
+  "exclude": ["node_modules", "cdk.out"]
+}