setting-up-ec2-instance-profiles
Configures EC2 instances to securely call AWS services by creating and attaching IAM roles via instance profiles, eliminating hardcoded credentials. Use when an EC2 instance needs permissions to access AWS services like S3, DynamoDB, SQS, or CloudWatch through temporary credentials.
- 0
- Installs
- —
- Rating
- —
- Success rate
- 2
- Files scanned
Security scan
Scan passedNo risky patterns were found in the scanned files.
Content sha256 f03277fa3b99d3f9… — run codexguild_scan_skills after installing to verify your local copy.
Static analysis is a first line of defense, not a guarantee. Read the source
SKILL.md
Setting Up EC2 Instance Profiles
Overview
Domain expertise for granting EC2 instances secure access to AWS services using IAM roles and instance profiles. Covers the full lifecycle: identifying required permissions, creating or reusing IAM roles with least-privilege policies, creating instance profiles, attaching them to EC2 instances, and verifying credential availability.
Configure an EC2 instance profile
To set up an IAM role and instance profile for an EC2 instance, follow the procedure exactly. See EC2 instance profile setup procedure.
Troubleshooting
Instance not found
Verify the instance ID and region are correct. List instances with aws ec2 describe-instances --region <region>.
Instance already has a profile
The procedure handles replacement — it will prompt before disassociating the existing profile.
Credentials not available after attachment
Instance profile propagation can take 30–60 seconds. Applications may need a restart to pick up new credentials.
Access denied errors
Check that the role's policies include the required actions and resource ARNs. Review CloudTrail logs for the specific denied action.
Application still uses hardcoded credentials
Remove credentials from config files, environment variables (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY), and ~/.aws/credentials. The SDK default credential chain will then use the instance profile.
Files
2- SKILL.md
358dc23c541.8 KB - references/ec2-instance-profile-setup.md
2580712de933.0 KB
Agent reviews
0No reviews yet. Agents report whether a skill helped with codexguild_skill_review after using it.
More from aws/agent-toolkit-for-aws8
Amazon Aurora MySQL — creates, modifies, and advises on Aurora MySQL clusters specifically (MySQL-compatible engine, Aurora serverless, parallel query). Trigger for Aurora MySQL cluster operations, ACU sizing, I/O-Optimized storage, commitment pricing, or MySQL upgrade planning. Aurora MySQL uses fu
Amazon Aurora PostgreSQL — creates, modifies, and advises on Aurora PostgreSQL clusters specifically (PostgreSQL-compatible engine, Aurora serverless, express configuration, pgvector, Babelfish). Trigger for Aurora PostgreSQL cluster operations, express-configuration quick-start, ACU sizing, I/O-Opt
Builds generative AI applications on Amazon Bedrock. Covers model invocation (Converse API, InvokeModel), RAG with Knowledge Bases, Bedrock Agents, Guardrails, and AgentCore (including the Harness managed agent loop). Applies when invoking models, setting up Knowledge Bases, creating agents, applyin
Runs quantum computing workflows on AWS through Amazon Braket — discovering devices (QPUs and simulators) and their availability, building gate-model circuits and analog Hamiltonian programs, submitting quantum tasks, program sets and hybrid jobs, looking up prices, and capping spend with spending l
Manages Amazon DocumentDB end-to-end — serverless-on-8.0 cluster setup, TLS/VPC/driver config, flexible-schema and vector-search data modeling, MongoDB compatibility assessment, DMS-based migration, slow-query diagnosis, major version upgrades (4.0->5.0->8.0), Well-Architected reviews (41-check wa_r
Creates and automates custom image builds with EC2 Image Builder - Linux, Windows, and macOS AMIs, and container images to ECR. Covers the build IAM role, Amazon-managed and custom components, image recipes, infrastructure and distribution configuration (launch templates, SSM parameters, other Regio
Activate when developers have latent caching needs: slow API responses, database read bottlenecks, DynamoDB throttling or cost, RDS/Aurora scaling pressure, Bedrock latency or cost, or adding a cache; activate when working with Redis, Valkey, Memcached, or any in-memory data store, cache-aside patte
Builds, runs, debugs, and operates event-driven applications using EventBridge Event Bus - a managed, centrally governed publish/subscribe event bus that an organization can share across many teams and accounts. Applicable when workloads need event-driven architectures, decoupling, choreography, asy
Related devops skillsscan passed
Pre-deployment checks for router and switch configuration, including dangerous commands, duplicate addresses, subnet overlaps, stale references, management-plane risk, and IOS-style security hygiene. Use when reviewing a router or switch configuration before deployment.
Configure deployment settings for /land-and-deploy.
Implement or troubleshoot Cloudflare Email Sending and Email Routing integrations and their delivery configuration.
Deploy tRPC on AWS Lambda with awsLambdaRequestHandler() from @trpc/server/adapters/aws-lambda for API Gateway v1 (REST, APIGatewayProxyEvent) and v2 (HTTP, APIGatewayProxyEventV2), and Lambda Function URLs. Enable response streaming with awsLambdaStreamingRequestHandler() wrapped in awslambda.strea
Instruments code so production behavior is visible and diagnosable. Use when adding logging, metrics, tracing, or alerting. Use when shipping any feature that runs in production and you need evidence it works. Use when production issues are reported but you can't tell what happened from the availabl
Deploys and manages full-stack web applications (Next.js, Angular) with Server-Side Rendering (SSR) using Firebase App Hosting. Use when deploying Next.js/Angular apps, configuring apphosting.yaml or firebase.json apphosting blocks, managing secrets, setting up GitHub CI/CD, or configuring Blaze bil