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Azure Compute - Coggle Diagram

- - - - impacts price
      - impacts availability of service
    - - General Purpose
        
        balanced CPU to memory ratio
      - Memory Optimised
        
        high memory to cpu issue
      - Compute optimised
        
        high cpu to memory ratio
      - storage optimised
      - GPU (Graphics processing)
      - HPC - high performance compute
- - - - shared/common services deployed here e.g. access from on premises
    - - used for individual workloads
      - spokes connect to hub using peering
    - - Azure managed Azure Virtual WAN - AVWAN
      - enhanced security - centralises management
      - cost saving as it does not need network virtual appliance
  - - - VPN Gateway - encrypted traffic over internet
      - site to site
      - point to site
      - Vnet to Vnet
      - requires an on premises VPN device
    - - private connection does not go over internet
      - needs a third party connection provider
      - supports dynamic scaling helps to reduce cost
  - - - VNet NAT Gateways
        
        simplifies outbound-only Internet connectivity for virtual networks
    - - recommended as native segmentation
- - - - Azure service bus queue (messages)
        
        group messages in transactions
        
        publish and consume batches of messages
        
        At-most-once delivery guarantee
        
        at least once message processing
      - Azure queue storage
        
        simple queuing
        
        queue size > 80gb
        
        audit of messages in and out
      - Azure service bus topics (messages)
        
        Multiple receivers to handle each message
        
        Multiple destinations for a single message but need queue-like behaviour
      - Event Hubs
        
        When the events throughput is very high
        
        uses a pull model i.e. message is stored and waits for consumers to pull it
      - Event Grids
        
        Fully managed event routing service
        
        Event sources tag events with topics
        
        event handlers subscribe to the topics they are interested in
  - - - onboarding new users
      - security
      - versions
    - - its a facade over APIs
      - APIs can be physically deployed in different servers
      - when should we use API management
        
        number of APIs
        
        Rate of revisions of APIs
        
        API admin overhead
        
        policy implementations i.e. quota, rate limit
  - - - covers both azure and non-azure environments
      - update management, config management, process automation
      - update management : updating windows and linux servers across the state
      - config management - change tracking, azure automation state config