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Created July 9, 2019 15:27
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  1. @pydevops pydevops revised this gist Jun 18, 2019. 1 changed file with 12 additions and 0 deletions.
    12 changes: 12 additions & 0 deletions gcloud_cheat_sheet.md
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    @@ -278,6 +278,18 @@ gcloud compute ssh --verbosity=debug <instance_name> --command "kubectl get node
    gcloud compute scp --recurse ../manifest <instance_name>:
    ```

    ### SSH via IAP
    * https://cloud.google.com/iap/docs/using-tcp-forwarding

    ```
    # find out access-config-name's name
    gcloud compute instances describe oregon1
    # remove the external IP
    gcloud compute instances delete-access-config oregon1 --access-config-name "External NAT"
    # connect via IAP, assuming the IAP is granted to the account used for login.
    gcloud beta compute ssh oregon1 --tunnel-through-iap
    ```
    ### ssh port forwarding for elasticsearch
    ```
    gcloud compute --project "foo" ssh --zone "us-central1-c" "elasticsearch-1" --ssh-flag="-L localhost:9200:localhost:9200"
  2. @pydevops pydevops revised this gist Jun 18, 2019. 1 changed file with 1 addition and 0 deletions.
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    ## multiple gcloud config configurations
    * https://www.jhanley.com/google-cloud-understanding-gcloud-configurations/
    * https://medium.com/infrastructure-adventures/working-with-multiple-environment-in-gcloud-cli-93b2d4e8cf1e

    ```
    gcloud config configurations create pythonrocks
  3. @pydevops pydevops revised this gist Jun 12, 2019. 1 changed file with 5 additions and 1 deletion.
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    @@ -606,4 +606,8 @@ gcloud container clusters create k1 --network custom-ip-vpc --subnetwork subnet-
    ```
    brew install bat
    gcloud ml language analyze-entities --content="Michelangelo Caravaggio, Italian painter, is known for 'The Calling of Saint Matthew'." | bat -l json
    ```
    ```

    ## Deployment Manager
    * https://cloud.google.com/sdk/gcloud/reference/deployment-manager/deployments/
    Play with the commands for preview and cancel-preview.
  4. @pydevops pydevops revised this gist Jun 9, 2019. 1 changed file with 7 additions and 5 deletions.
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    * https://www.jhanley.com/google-cloud-understanding-gcloud-configurations/

    ```
    $gcloud config configurations list
    NAME IS_ACTIVE ACCOUNT PROJECT DEFAULT_ZONE DEFAULT_REGION
    default False [email protected] operator us-west1-b us-west1
    someone True [email protected] dev-env us-west1-b us-west1
    $gcloud config configurations activate default
    gcloud config configurations create pythonrocks
    gcloud config configurations list
    gcloud config configurations activate pythonrocks
    gcloud config set core/account [email protected]
    gcloud auth login
    gcloud projects list
    gcloud config set project dev-193420
    ```

    ### switch gcloud context with gcloud config
  5. @pydevops pydevops revised this gist Jun 4, 2019. 1 changed file with 10 additions and 1 deletion.
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    @@ -103,7 +103,16 @@ gcloud beta billing accounts list
    gcloud organizations list
    ```

    ## service account
    ## IAM list permission and roles for a given resource
    ```
    gcloud iam list-testable-permissions <uri>
    gcloud iam list-grantable-roles <uri>
    # get uri e.g.
    gcloud projects list --uri
    ```

    ## IAM service account
    * [When granting IAM roles, you can treat a service account either as a resource or as an identity](https://cloud.google.com/iam/docs/granting-roles-to-service-accounts)

    ```
  6. @pydevops pydevops revised this gist Jun 3, 2019. 1 changed file with 1 addition and 1 deletion.
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    @@ -203,7 +203,7 @@ gcloud kms keyrings add-iam-policy-binding $KEYRING_NAME \
    gcloud kms keyrings add-iam-policy-binding $KEYRING_NAME \
    --location global \
    --member user:$USER_EMAIL \
    --role roles/cloudkms.admin
    --role roles/cloudkms.cryptoKeyEncrypterDecrypter
    # Encrypt and Decrypt in REST API
    curl -v "https://cloudkms.googleapis.com/v1/projects/$DEVSHELL_PROJECT_ID/locations/global/keyRings/$KEYRING_NAME/cryptoKeys/$CRYPTOKEY_NAME:encrypt" \
  7. @pydevops pydevops revised this gist Jun 2, 2019. 1 changed file with 3 additions and 2 deletions.
    5 changes: 3 additions & 2 deletions gcloud_cheat_sheet.md
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    @@ -86,8 +86,9 @@ PROJECT_ID=$(gcloud config get-value core/project)
    PROJECT_ID=$(gcloud config list project --format='value(core.project)')
    PROJECT_ID=$(gcloud info --format='value(config.project)')
    # get project_number
    gcloud projects list --filter="name:${project_id}" --format='value(project_number)'
    # get project_number given project_id or name
    gcloud projects list --filter="project_id:${project_id}" --format='value(project_number)'
    gcloud projects list --filter="name:${project_name}" --format='value(project_number)'
    ```

    ## zones
  8. @pydevops pydevops revised this gist Jun 2, 2019. 1 changed file with 16 additions and 26 deletions.
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    @@ -96,32 +96,33 @@ To return a list of zones given a region
    gcloud compute zones list --filter=region:us-central1
    ```



    ## billing
    ```
    gcloud beta billing accounts list
    gcloud organizations list
    ```

    ## service account and IAM
    ## service account
    * [When granting IAM roles, you can treat a service account either as a resource or as an identity](https://cloud.google.com/iam/docs/granting-roles-to-service-accounts)

    ### List IAM policy on the project level
    ```
    gcloud projects get-iam-policy <project_id>
    ```
    ### service account level
    ```
    # creaate jenkins sa
    gcloud iam service-accounts create jenkins --display-name jenkins
    export SA_EMAIL=$(gcloud iam service-accounts list \
    --filter="displayName:jenkins" --format='value(email)')
    export PROJECT=$(gcloud info --format='value(config.project)')
    gcloud projects add-iam-policy-binding $PROJECT \
    --role roles/storage.admin --member serviceAccount:$SA_EMAIL
    # creaate and list sa
    gcloud iam service-accounts create jenkins --display-name jenkins
    gcloud iam service-accounts list
    gcloud iam service-accounts list --filter='email ~ [0-9]*-compute@.*' --format='table(email)'
    # create & list sa key
    gcloud iam service-accounts keys create jenkins-sa.json --iam-account $SA_EMAIL
    gcloud iam service-accounts keys list --iam-account=vault-admin@<project_id>.iam.gserviceaccount.com
    # project level: grant roles to sa
    gcloud projects get-iam-policy $PROJECT
    gcloud projects add-iam-policy-binding $PROJECT --role roles/storage.admin \
    --member serviceAccount:$SA_EMAIL
    gcloud projects add-iam-policy-binding $PROJECT --role roles/compute.instanceAdmin.v1 \
    --member serviceAccount:$SA_EMAIL
    gcloud projects add-iam-policy-binding $PROJECT --role roles/compute.networkAdmin \
    @@ -130,20 +131,9 @@ gcloud projects add-iam-policy-binding $PROJECT --role roles/compute.securityAdm
    --member serviceAccount:$SA_EMAIL
    gcloud projects add-iam-policy-binding $PROJECT --role roles/iam.serviceAccountActor \
    --member serviceAccount:$SA_EMAIL
    # create service account key
    gcloud iam service-accounts keys create jenkins-sa.json --iam-account $SA_EMAIL
    ```
    ```
    gcloud iam service-accounts keys list --iam-account=vault-admin@<project_id>.iam.gserviceaccount.com
    gcloud iam service-accounts list
    # service account level: add role to service account
    gcloud iam service-accounts get-iam-policy <sa_email>
    # get the compute engine account
    gcloud iam service-accounts list --filter='email ~ [0-9]*-compute@.*' --format='table(email)'
    # add role to service account
    gcloud iam service-accounts add-iam-policy-binding [email protected] --member='serviceAccount:[email protected]' --role='roles/iam.serviceAccountActor'
    ```

    @@ -153,7 +143,7 @@ COMPUTE_ENGINE_SA_EMAIL=$(gcloud iam service-accounts list --filter="name:Comput
    gsutil iam ch serviceAccount:${COMPUTE_ENGINE_SA_EMAIL}:objectViewer gs://bucket-name
    ```

    ## Custom Roles
    ### Custom Roles
    ```
    # list predefined roles
    gcloud iam roles list
  9. @pydevops pydevops revised this gist Jun 2, 2019. 1 changed file with 2 additions and 2 deletions.
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    @@ -160,9 +160,9 @@ gcloud iam roles list
    # list custom roles
    gcloud iam roles list --project $PROJECT_ID
    # create custom role in 2 ways
    # create custom role in the following 2 ways, either on project level (--project [PROJECT_ID]) or org level (--organization [ORGANIZATION_ID])
    1. gcloud iam roles create editor --project $PROJECT_ID --file role-definition.yaml
    2. gcloud iam roles create viewer --project $DEVSHELL_PROJECT_ID --title "Role Viewer" --description "Custom role description." --permissions compute.instances.get,compu
    2. gcloud iam roles create viewer --project $PROJECT_ID --title "Role Viewer" --description "Custom role description." --permissions compute.instances.get,compu
    te.instances.list --stage ALPHA
    ```

  10. @pydevops pydevops revised this gist Jun 2, 2019. 1 changed file with 13 additions and 2 deletions.
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    @@ -78,8 +78,6 @@ gcloud info --format flattened
    export PROJECT=$(gcloud info --format='value(config.project)')
    ```



    ## projects

    ```
    @@ -155,6 +153,19 @@ COMPUTE_ENGINE_SA_EMAIL=$(gcloud iam service-accounts list --filter="name:Comput
    gsutil iam ch serviceAccount:${COMPUTE_ENGINE_SA_EMAIL}:objectViewer gs://bucket-name
    ```

    ## Custom Roles
    ```
    # list predefined roles
    gcloud iam roles list
    # list custom roles
    gcloud iam roles list --project $PROJECT_ID
    # create custom role in 2 ways
    1. gcloud iam roles create editor --project $PROJECT_ID --file role-definition.yaml
    2. gcloud iam roles create viewer --project $DEVSHELL_PROJECT_ID --title "Role Viewer" --description "Custom role description." --permissions compute.instances.get,compu
    te.instances.list --stage ALPHA
    ```

    ## app engine
    * https://medium.com/google-cloud/app-engine-project-cleanup-9647296e796a

  11. @pydevops pydevops revised this gist Jun 1, 2019. 1 changed file with 6 additions and 0 deletions.
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    @@ -583,6 +583,12 @@ gcloud beta container clusters create run-gke \
    ```


    ```
    # create a VPC native cluster
    gcloud container clusters create k1 --network custom-ip-vpc --subnetwork subnet-alias --enable-ip-alias --cluster-ipv4-cidr=/16 --services-ipv4-cidr=/22
    ```


    ## Machine Learning
    ```
    brew install bat
  12. @pydevops pydevops revised this gist May 29, 2019. 1 changed file with 38 additions and 37 deletions.
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    ## Other cheatsheets
    * https://github.com/dennyzhang/cheatsheet-gcp-A4

    ## multiple gcloud config
    ## multiple gcloud config configurations
    * https://www.jhanley.com/google-cloud-understanding-gcloud-configurations/

    ```
    $gcloud config configurations list
    NAME IS_ACTIVE ACCOUNT PROJECT DEFAULT_ZONE DEFAULT_REGION
    default False [email protected] operator us-west1-b us-west1
    someone True [email protected] dev-env us-west1-b us-west1
    $gcloud config configurations activate default
    ```

    ### switch gcloud context with gcloud config
    ```
    gcloud config list
    gcloud config set account [email protected]
    gcloud config set project salt-163215
    gcloud config set compute/region us-west1
    gcloud config set compute/zone us-west1-a
    alias demo='gcloud config set account [email protected] && gcloud config set project salt-163215 && gcloud config set compute/region us-west1 && gcloud config set compute/zone us-west1-a'
    cluster=$(gcloud config get-value container/cluster 2> /dev/null)
    zone=$(gcloud config get-value compute/zone 2> /dev/null)
    project=$(gcloud config get-value core/project 2> /dev/null)
    # switch project based on the name
    gcloud config set project $(gcloud projects list --filter='name:wordpress-dev' --format='value(project_id)')
    # get the GKE cluster endpoint
    gcloud container clusters describe mycluster --zone $(gcloud config get-value compute/zone) --format='get(endpoint)'
    ```

    ```
    command -v gcloud >/dev/null 2>&1 || { \
    echo >&2 "I require gcloud but it's not installed. Aborting."; exit 1; }
    REGION=$(gcloud config get-value compute/region)
    if [[ -z "${REGION}" ]]; then
    echo "https://cloud.google.com/compute/docs/regions-zones/changing-default-zone-region" 1>&2
    echo "gcloud cli must be configured with a default region." 1>&2
    echo "run 'gcloud config set compute/region REGION'." 1>&2
    echo "replace 'REGION' with the region name like us-west1." 1>&2
    exit 1;
    fi
    ```

    ## auth
    ```
    gcloud auth list
    @@ -62,42 +98,7 @@ To return a list of zones given a region
    gcloud compute zones list --filter=region:us-central1
    ```

    ## switch gcloud context with gcloud config
    ```
    gcloud config list
    gcloud config configurations list
    gcloud config set account [email protected]
    gcloud config set project salt-163215
    gcloud config set compute/region us-west1
    gcloud config set compute/zone us-west1-a
    alias demo='gcloud config set account [email protected] && gcloud config set project salt-163215 && gcloud config set compute/region us-west1 && gcloud config set compute/zone us-west1-a'
    cluster=$(gcloud config get-value container/cluster 2> /dev/null)
    zone=$(gcloud config get-value compute/zone 2> /dev/null)
    project=$(gcloud config get-value core/project 2> /dev/null)
    # switch project based on the name
    gcloud config set project $(gcloud projects list --filter='name:wordpress-dev' --format='value(project_id)')
    # get the GKE cluster endpoint
    gcloud container clusters describe mycluster --zone $(gcloud config get-value compute/zone) --format='get(endpoint)'
    ```

    ```
    command -v gcloud >/dev/null 2>&1 || { \
    echo >&2 "I require gcloud but it's not installed. Aborting."; exit 1; }

    REGION=$(gcloud config get-value compute/region)
    if [[ -z "${REGION}" ]]; then
    echo "https://cloud.google.com/compute/docs/regions-zones/changing-default-zone-region" 1>&2
    echo "gcloud cli must be configured with a default region." 1>&2
    echo "run 'gcloud config set compute/region REGION'." 1>&2
    echo "replace 'REGION' with the region name like us-west1." 1>&2
    exit 1;
    fi
    ```

    ## billing
    ```
  13. @pydevops pydevops revised this gist May 29, 2019. 1 changed file with 11 additions and 9 deletions.
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    @@ -42,11 +42,7 @@ gcloud info --format flattened
    export PROJECT=$(gcloud info --format='value(config.project)')
    ```

    ## zones
    To return a list of zones given a region
    ```
    gcloud compute zones list --filter=region:us-central1
    ```


    ## projects

    @@ -59,10 +55,11 @@ PROJECT_ID=$(gcloud info --format='value(config.project)')
    # get project_number
    gcloud projects list --filter="name:${project_id}" --format='value(project_number)'
    ```
    ## billing

    ## zones
    To return a list of zones given a region
    ```
    gcloud beta billing accounts list
    gcloud organizations list
    gcloud compute zones list --filter=region:us-central1
    ```

    ## switch gcloud context with gcloud config
    @@ -76,7 +73,6 @@ gcloud config set compute/zone us-west1-a
    alias demo='gcloud config set account [email protected] && gcloud config set project salt-163215 && gcloud config set compute/region us-west1 && gcloud config set compute/zone us-west1-a'
    cluster=$(gcloud config get-value container/cluster 2> /dev/null)
    zone=$(gcloud config get-value compute/zone 2> /dev/null)
    project=$(gcloud config get-value core/project 2> /dev/null)
    @@ -103,6 +99,12 @@ fi
    ```

    ## billing
    ```
    gcloud beta billing accounts list
    gcloud organizations list
    ```

    ## service account and IAM
    * [When granting IAM roles, you can treat a service account either as a resource or as an identity](https://cloud.google.com/iam/docs/granting-roles-to-service-accounts)

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    @@ -364,6 +364,8 @@ gcloud compute routes create no-ip-internet-route \
    --tags no-ip --priority 800
    ```
    ### firewall rules
    * https://medium.com/@swongra/protect-your-google-cloud-instances-with-firewall-rules-69cce960fba

    ```
    # allow SSH, RDP and ICMP for the given network
    gcloud compute firewall-rules create managementnet-allow-icmp-ssh-rdp --direction=INGRESS --priority=1000 --network=managementnet --action=ALLOW --rules=tcp:22,3389,icmp --source-ranges=0.0.0.0/0
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    @@ -380,6 +380,9 @@ gcloud compute firewall-rules create mynetwork-deny-icmp \
    gcloud compute firewall-rules list \
    --filter="network:mynetwork AND name=mynetwork-deny-icmp"
    # sort-by
    gcloud compute firewall-rules list --sort-by=NETWORK
    ```

    ### layer 4 network lb
  16. @pydevops pydevops revised this gist May 20, 2019. 1 changed file with 7 additions and 10 deletions.
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    ```
    ### firewall rules
    ```
    ## ALLOW
    gcloud beta compute firewall-rules create mynetwork-allow-icmp --network mynetwork \
    --action ALLOW --direction INGRESS --rules icmp
    gcloud beta compute firewall-rules create mynetwork-allow-ssh --network mynetwork \
    --action ALLOW --direction INGRESS --rules tcp:22
    gcloud beta compute firewall-rules create mynetwork-allow-internal --network \
    # allow SSH, RDP and ICMP for the given network
    gcloud compute firewall-rules create managementnet-allow-icmp-ssh-rdp --direction=INGRESS --priority=1000 --network=managementnet --action=ALLOW --rules=tcp:22,3389,icmp --source-ranges=0.0.0.0/0
    # allow internal from given source range
    gcloud compute firewall-rules create mynetwork-allow-internal --network \
    mynetwork --action ALLOW --direction INGRESS --rules all \
    --source-ranges 10.128.0.0/9
    gcloud beta compute firewall-rules list \
    --filter="network:mynetwork"
    gcloud compute firewall-rules list --filter="network:mynetwork"
    ## DENY
    gcloud beta compute firewall-rules create mynetwork-deny-icmp \
    gcloud compute firewall-rules create mynetwork-deny-icmp \
    --network mynetwork --action DENY --direction EGRESS --rules icmp \
    --destination-ranges 10.132.0.2 --priority 500
    gcloud beta compute firewall-rules list \
    gcloud compute firewall-rules list \
    --filter="network:mynetwork AND name=mynetwork-deny-icmp"
    ```
  17. @pydevops pydevops revised this gist May 20, 2019. 1 changed file with 8 additions and 0 deletions.
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    ## Networking

    ### network and subnets
    ```
    gcloud compute networks create privatenet --subnet-mode=custom
    gcloud compute networks subnets create privatesubnet-us --network=privatenet --region=us-central1 --range=172.16.0.0/24
    gcloud compute networks subnets create privatesubnet-eu --network=privatenet --region=europe-west1 --range=172.20.0.0/20
    gcloud compute networks subnets list --sort-by=NETWORK
    ```

    ### route
    tag the instances with `no-ips`

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    @@ -558,6 +558,18 @@ gcloud beta container clusters create private-cluster2 \
    --master-authorized-networks <external_ip_of_kubectl_instance>
    ```

    ```
    # create a GKE cluster with CloudRun,Istio, HPA enabled
    gcloud beta container clusters create run-gke \
    --addons HorizontalPodAutoscaling,HttpLoadBalancing,Istio,CloudRun \
    --scopes cloud-platform \
    --zone us-central1-a \
    --machine-type n1-standard-4 \
    --enable-stackdriver-kubernetes \
    --no-enable-ip-alias
    ```


    ## Machine Learning
    ```
    brew install bat
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    @@ -213,19 +213,90 @@ curl -v "https://cloudkms.googleapis.com/v1/projects/$DEVSHELL_PROJECT_ID/locati
    -H "Content-Type:application/json" \
    | jq .plaintext -r | base64 -d
    ```
    ## compute engine

    ## gcloud command for creating an instance?
    ### gcloud command for creating an instance?
    from web console
    ```
    gcloud compute instances create [INSTANCE_NAME] \
    --image-family [IMAGE_FAMILY] \
    --image-project [IMAGE_PROJECT] \
    --create-disk image=[DISK_IMAGE],image-project=[DISK_IMAGE_PROJECT],size=[SIZE_GB],type=[DISK_TYPE]
    gcloud beta compute --project=victory-demo-dev instances create micro1 --zone=us-west1-a --machine-type=f1-micro --subnet=default --network-tier=PREMIUM --maintenance-policy=MIGRATE --service-account=398028291895-compute@developer.gserviceaccount.com --scopes=https://www.googleapis.com/auth/devstorage.read_only,https://www.googleapis.com/auth/logging.write,https://www.googleapis.com/auth/monitoring.write,https://www.googleapis.com/auth/servicecontrol,https://www.googleapis.com/auth/service.management.readonly,https://www.googleapis.com/auth/trace.append --min-cpu-platform=Automatic --image=debian-9-stretch-v20180510 --image-project=debian-cloud --boot-disk-size=10GB --boot-disk-type=pd-standard --boot-disk-device-name=micro1
    gcloud compute instances create micro1 --zone=us-west1-a --machine-type=f1-micro --subnet=default --network-tier=PREMIUM --maintenance-policy=MIGRATE --service-account=398028291895-compute@developer.gserviceaccount.com --scopes=https://www.googleapis.com/auth/devstorage.read_only,https://www.googleapis.com/auth/logging.write,https://www.googleapis.com/auth/monitoring.write,https://www.googleapis.com/auth/servicecontrol,https://www.googleapis.com/auth/service.management.readonly,https://www.googleapis.com/auth/trace.append --min-cpu-platform=Automatic --image=debian-9-stretch-v20180510 --image-project=debian-cloud --boot-disk-size=10GB --boot-disk-type=pd-standard --boot-disk-device-name=micro1
    ```

    ## instances, template, target-pool and instance group
    ### list compute images
    ```
    gcloud compute images list --filter=name:debian --uri
    https://www.googleapis.com/compute/v1/projects/debian-cloud/global/images/debian-8-jessie-v20180109
    https://www.googleapis.com/compute/v1/projects/debian-cloud/global/images/debian-9-stretch-v20180105
    # Use the following command to see available non-Shielded VM Windows Server images
    gcloud compute images list --project windows-cloud --no-standard-images
    # Use the following command to see a list of available Shielded VM images, including Windows images
    gcloud compute images list --project gce-uefi-images --no-standard-images
    ```

    ### list an instance
    * [filters](https://cloud.google.com/sdk/gcloud/reference/topic/filters)
    * [resource-keys](https://cloud.google.com/sdk/gcloud/reference/topic/resource-keys)

    ```
    gcloud compute instances list --filter="zone:us-central1-a"
    gcloud compute instances list --project=dev --filter="name~^es"
    gcloud compute instances list --project=dev --filter=name:kafka --format="value(name,INTERNAL_IP)"
    gcloud compute instances list --filter=tags:kafka-node
    gcloud compute instances list --filter='machineType:g1-small'
    ```

    ### move instance
    `gcloud compute instances move <instance_wanna_move> --destination-zone=us-central1-a --zone=us-central1-c`

    ### ssh & scp
    ```
    #--verbosity=debug is great for debugging, showing the SSH command
    # the following is a real word example for running a bastion server that talks to a GKE cluster (master authorized network)
    gcloud compute ssh --verbosity=debug <instance_name> --command "kubectl get nodes"
    gcloud compute scp --recurse ../manifest <instance_name>:
    ```
    ### ssh port forwarding for elasticsearch
    ```
    gcloud compute --project "foo" ssh --zone "us-central1-c" "elasticsearch-1" --ssh-flag="-L localhost:9200:localhost:9200"
    ```
    The 2nd `localhost` is relative to elasticsearch-1`

    ### ssh reverse port forwarding
    for example, how to connect to home server's flask server (tcp port 5000) for a demo or a local game server in development
    ```
    GOOGLE_CLOUD_PROJECT=$(gcloud config get-value project)
    gcloud compute --project "${GOOGLE_CLOUD_PROJECT}" ssh --zone "us-west1-c" --ssh-flag="-v -N -R :5000:localhost:5000" "google_cloud_bastion_server"
    ```

    ### generate ssh config
    ```
    gcloud compute config-ssh
    ```

    ### debugging
    gcloud debugging: `gcloud compute instances list --log-http`
    [serial port debug](https://cloud.google.com/compute/docs/instances/interacting-with-serial-console)


    ### instance level metadata
    ```
    curl -s "http://metadata.google.internal/computeMetadata/v1/instance/?recursive=true&alt=text" -H "Metadata-Flavor: Google"
    leader=$(curl -s "http://metadata.google.internal/computeMetadata/v1/instance/attributes/leader" -H "Metadata-Flavor: Google")
    ```

    ### project level metadata
    ```
    gcloud compute project-info describe
    gcloud compute project-info describe --flatten="commonInstanceMetadata[]"
    ```

    ### instances, template, target-pool and instance group
    ```
    cat << EOF > startup.sh
    #! /bin/bash
    @@ -258,6 +329,19 @@ gcloud compute instance-templates create nat-2 \
    --machine-type n1-standard-2 --can-ip-forward --tags natgw \
    --metadata-from-file=startup-script=startup.sh --address $nat_2_ip
    ```
    ### disk snapshot
    ```
    gcloud compute disks snapshot kafka-data1-1 --async --snapshot-names=kafka-data-1 --project project_a --zone us-west1-a
    Use [gcloud compute operations describe URI] command to check the status of the operation(s).
    ```

    ### regional disk
    ```
    gcloud beta compute instance attach-disk micro1 --disk pd-west1 --disk-scope regional
    ```


    ## Networking

    ### route
    tag the instances with `no-ips`
    @@ -271,7 +355,7 @@ gcloud compute routes create no-ip-internet-route \
    --next-hop-instance-zone us-central1-a \
    --tags no-ip --priority 800
    ```
    ## firewall rules
    ### firewall rules
    ```
    ## ALLOW
    gcloud beta compute firewall-rules create mynetwork-allow-icmp --network mynetwork \
    @@ -293,8 +377,7 @@ gcloud beta compute firewall-rules list \
    ```


    ## layer 4 network lb
    ### layer 4 network lb
    ```
    gcloud compute firewall-rules create www-firewall --allow tcp:80
    gcloud compute forwarding-rules create nginx-lb \
    @@ -306,7 +389,7 @@ gcloud compute firewall-rules list --sort-by=NETWORK
    ```

    ## layer 7 http lb
    ### layer 7 http lb
    * https://cloud.google.com/solutions/scalable-and-resilient-apps

    ```
    @@ -337,14 +420,14 @@ gcloud compute forwarding-rules list
    ```

    ## forwarding-rules
    ### forwarding-rules
    ```
    gcloud compute forwarding-rules list --filter=$(dig +short <dns_name>)
    gcloud compute forwarding-rules describe my-forwardingrule --region us-central1
    gcloud compute forwarding-rules describe my-http-forwardingrule --global
    ```

    ## address
    ### address
    ```
    # get the external IP address of the instance
    gcloud compute instances describe single-node \
    @@ -357,84 +440,6 @@ gcloud projects list --format='value(project_id)' | xargs -I {} gcloud compute a
    ```


    ## compute engine image
    ```
    gcloud compute images list --filter=name:debian --uri
    https://www.googleapis.com/compute/v1/projects/debian-cloud/global/images/debian-8-jessie-v20180109
    https://www.googleapis.com/compute/v1/projects/debian-cloud/global/images/debian-9-stretch-v20180105
    ```

    ## list an instance
    * [filters](https://cloud.google.com/sdk/gcloud/reference/topic/filters)
    * [resource-keys](https://cloud.google.com/sdk/gcloud/reference/topic/resource-keys)

    ```
    gcloud compute instances list --filter="zone:us-central1-a"
    gcloud compute instances list --project=dev --filter="name~^es"
    gcloud compute instances list --project=dev --filter=name:kafka --format="value(name,INTERNAL_IP)"
    gcloud compute instances list --filter=tags:kafka-node
    gcloud compute instances list --filter='machineType:g1-small'
    ```

    ## move instance
    `gcloud compute instances move <instance_wanna_move> --destination-zone=us-central1-a --zone=us-central1-c`

    ## ssh & scp
    ```
    #--verbosity=debug is great for debugging, showing the SSH command
    # the following is a real word example for running a bastion server that talks to a GKE cluster (master authorized network)
    gcloud compute ssh --verbosity=debug <instance_name> --command "kubectl get nodes"
    gcloud compute scp --recurse ../manifest <instance_name>:
    ```
    ### ssh port forwarding for elasticsearch
    ```
    gcloud compute --project "foo" ssh --zone "us-central1-c" "elasticsearch-1" --ssh-flag="-L localhost:9200:localhost:9200"
    ```
    The 2nd `localhost` is relative to elasticsearch-1`

    ### ssh reverse port forwarding
    for example, how to connect to home server's flask server (tcp port 5000) for a demo or a local game server in development
    ```
    GOOGLE_CLOUD_PROJECT=$(gcloud config get-value project)
    gcloud compute --project "${GOOGLE_CLOUD_PROJECT}" ssh --zone "us-west1-c" --ssh-flag="-v -N -R :5000:localhost:5000" "google_cloud_bastion_server"
    ```

    ### generate ssh config
    ```
    gcloud compute config-ssh
    ```

    ## serial port debug
    * https://cloud.google.com/compute/docs/instances/interacting-with-serial-console

    ## disk snapshot
    ```
    gcloud compute disks snapshot kafka-data1-1 --async --snapshot-names=kafka-data-1 --project project_a --zone us-west1-a
    Use [gcloud compute operations describe URI] command to check the status of the operation(s).
    ```

    ## regional disk
    ```
    gcloud beta compute instance attach-disk micro1 --disk pd-west1 --disk-scope regional
    ```

    ## debugging
    ```
    gcloud compute instances list --log-http
    ```

    ## instance level metadata
    ```
    curl -s "http://metadata.google.internal/computeMetadata/v1/instance/?recursive=true&alt=text" -H "Metadata-Flavor: Google"
    leader=$(curl -s "http://metadata.google.internal/computeMetadata/v1/instance/attributes/leader" -H "Metadata-Flavor: Google")
    ```

    ## project level metadata
    ```
    gcloud compute project-info describe
    gcloud compute project-info describe --flatten="commonInstanceMetadata[]"
    ```

    ## GCP managed ssl certificate
    ```
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    ## gcloud command for creating an instance?
    from web console
    ```
    gcloud compute instances create [INSTANCE_NAME] \
    --image-family [IMAGE_FAMILY] \
    --image-project [IMAGE_PROJECT] \
    --create-disk image=[DISK_IMAGE],image-project=[DISK_IMAGE_PROJECT],size=[SIZE_GB],type=[DISK_TYPE]
    gcloud beta compute --project=victory-demo-dev instances create micro1 --zone=us-west1-a --machine-type=f1-micro --subnet=default --network-tier=PREMIUM --maintenance-policy=MIGRATE --service-account=398028291895-compute@developer.gserviceaccount.com --scopes=https://www.googleapis.com/auth/devstorage.read_only,https://www.googleapis.com/auth/logging.write,https://www.googleapis.com/auth/monitoring.write,https://www.googleapis.com/auth/servicecontrol,https://www.googleapis.com/auth/service.management.readonly,https://www.googleapis.com/auth/trace.append --min-cpu-platform=Automatic --image=debian-9-stretch-v20180510 --image-project=debian-cloud --boot-disk-size=10GB --boot-disk-type=pd-standard --boot-disk-device-name=micro1
    ```

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    @@ -446,7 +446,14 @@ gcloud beta compute target-https-proxies list
    gcloud logging read "timestamp >= \"2018-04-19T00:30:00Z\" and logName=projects/${project_id}/logs/requests and resource.type=http_load_balancer" --format="csv(httpRequest.remoteIp,httpRequest.requestUrl,timestamp)" --project=${project_id}
    ```

    ## Enable Service
    ## Service

    ### list service available

    `gcloud services list --available`

    ### Enable Service

    ```
    # chain
    gcloud services enable cloudapis.googleapis.com && \
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    ## project level metadata
    ```
    gcloud compute project-info describe
    gcloud compute project-info describe --flatten="commonInstanceMetadata[]"
    ```

    ## GCP managed ssl certificate
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    ```


    ## layer 3 network lb
    ## layer 4 network lb
    ```
    gcloud compute firewall-rules create www-firewall --allow tcp:80
    gcloud compute forwarding-rules create nginx-lb \
    @@ -341,11 +341,17 @@ gcloud compute forwarding-rules describe my-http-forwardingrule --global

    ## address
    ```
    # get the external IP address of the instance
    gcloud compute instances describe single-node \
    --format='value(networkInterfaces.accessConfigs[0].natIP)
    gcloud compute addresses describe https-lb --global --format json
    # list all IP addresses
    gcloud projects list --format='value(project_id)' | xargs -I {} gcloud compute addresses list --format='value(address)' --project {} 2>/dev/null | sort | uniq -c
    ```


    ## compute engine image
    ```
    gcloud compute images list --filter=name:debian --uri
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    * [gcloud alpha interactive](http://cloudplatform.googleblog.com/2018/03/introducing-GCPs-new-interactive-CLI.html)
    * https://medium.com/@Joachim8675309/getting-started-with-gcloud-sdk-part-1-114924737
    * https://medium.com/@Joachim8675309/getting-started-with-gcloud-sdk-part-2-4d049a656f1a
    * https://gist.github.com/bborysenko/97749fe0514b819a5a87611e6aea3db8

    ## Other cheatsheets
    * https://github.com/dennyzhang/cheatsheet-gcp-A4
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    @@ -532,3 +532,9 @@ gcloud beta container clusters create private-cluster2 \
    --enable-master-authorized-networks \
    --master-authorized-networks <external_ip_of_kubectl_instance>
    ```

    ## Machine Learning
    ```
    brew install bat
    gcloud ml language analyze-entities --content="Michelangelo Caravaggio, Italian painter, is known for 'The Calling of Saint Matthew'." | bat -l json
    ```
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    ## multiple gcloud config

    ```
    gcloud config configurations list
    $gcloud config configurations list
    NAME IS_ACTIVE ACCOUNT PROJECT DEFAULT_ZONE DEFAULT_REGION
    default False [email protected] operator us-west1-b us-west1
    someone True [email protected] dev-env us-west1-b us-west1
    ~/.config/gcloud/configurations
    $gcloud config configurations activate default
    ```

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    ## Other cheatsheets
    * https://github.com/dennyzhang/cheatsheet-gcp-A4

    ## multiple gcloud config

    ```
    gcloud config configurations list
    NAME IS_ACTIVE ACCOUNT PROJECT DEFAULT_ZONE DEFAULT_REGION
    default False [email protected] operator us-west1-b us-west1
    someone True [email protected] dev-env us-west1-b us-west1
    ~/.config/gcloud/configurations
    $gcloud config configurations activate default
    ```

    ## auth
    ```
    gcloud auth list
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    ## service account and IAM
    * [When granting IAM roles, you can treat a service account either as a resource or as an identity](https://cloud.google.com/iam/docs/granting-roles-to-service-accounts)

    ### List IAM policy on the project level
    ```
    gcloud projects get-iam-policy <project_id>
    ```
    ### service account level
    ```
    # creaate jenkins sa
    gcloud iam service-accounts create jenkins --display-name jenkins
    @@ -118,7 +124,6 @@ gcloud iam service-accounts keys create jenkins-sa.json --iam-account $SA_EMAIL

    ```
    gcloud iam service-accounts keys list --iam-account=vault-admin@<project_id>.iam.gserviceaccount.com
    gcloud projects get-iam-policy <project_id>
    gcloud iam service-accounts list
    gcloud iam service-accounts get-iam-policy <sa_email>
    @@ -128,6 +133,8 @@ gcloud iam service-accounts list --filter='email ~ [0-9]*-compute@.*' --form
    # add role to service account
    gcloud iam service-accounts add-iam-policy-binding [email protected] --member='serviceAccount:[email protected]' --role='roles/iam.serviceAccountActor'
    ```

    ### GCS bucket level
    ```
    COMPUTE_ENGINE_SA_EMAIL=$(gcloud iam service-accounts list --filter="name:Compute Engine default service account" --format "value(email)")
    gsutil iam ch serviceAccount:${COMPUTE_ENGINE_SA_EMAIL}:objectViewer gs://bucket-name
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    @@ -363,6 +363,13 @@ gcloud compute --project "foo" ssh --zone "us-central1-c" "elasticsearch-1" --s
    ```
    The 2nd `localhost` is relative to elasticsearch-1`

    ### ssh reverse port forwarding
    for example, how to connect to home server's flask server (tcp port 5000) for a demo or a local game server in development
    ```
    GOOGLE_CLOUD_PROJECT=$(gcloud config get-value project)
    gcloud compute --project "${GOOGLE_CLOUD_PROJECT}" ssh --zone "us-west1-c" --ssh-flag="-v -N -R :5000:localhost:5000" "google_cloud_bastion_server"
    ```

    ### generate ssh config
    ```
    gcloud compute config-ssh
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    ## References
    * [have fun with them](https://cloudplatform.googleblog.com/2016/06/filtering-and-formatting-fun-with.html)
    * [projections](https://cloud.google.com/sdk/gcloud/reference/topic/projections)
    * [filters](https://cloud.google.com/sdk/gcloud/reference/topic/filters)
    * [resource-keys](https://cloud.google.com/sdk/gcloud/reference/topic/resource-keys)
    * [scripting-gcloud](https://cloud.google.com/sdk/docs/scripting-gcloud)
    * http://cloudplatform.googleblog.com/2018/03/introducing-GCPs-new-interactive-CLI.html
    * [gcloud alpha interactive](http://cloudplatform.googleblog.com/2018/03/introducing-GCPs-new-interactive-CLI.html)
    * https://medium.com/@Joachim8675309/getting-started-with-gcloud-sdk-part-1-114924737
    * https://medium.com/@Joachim8675309/getting-started-with-gcloud-sdk-part-2-4d049a656f1a

    ## Other cheatsheets
    * https://github.com/dennyzhang/cheatsheet-gcp-A4

    ## auth
    ```
    gcloud auth list