Initial commit

.circleci/config.yml

+version: 2
+jobs:                 
+  build:
+    machine: true
+    steps:
+      - checkout
+      - run: | 
+          TAG=0.1.$CIRCLE_BUILD_NUM
+          docker login -u $DOCKER_USER -p $DOCKER_PASS
+          docker build -t ajaytripathy/kubecost-cost-model:$TAG .
+          docker push ajaytripathy/kubecost-cost-model:$TAG
+  deploy:
+    machine: true
+    steps:
+      - checkout
+      - run: |
+          docker login -u $DOCKER_USER -p $DOCKER_PASS
+          docker build -t ajaytripathy/kubecost-cost-model:latest .
+          docker push ajaytripathy/kubecost-cost-model:latest
+
+workflows:
+  version: 2
+  build-and-deploy:
+    jobs:
+      - build
+      - deploy:
+          requires: 
+            - build
+          filters:
+            branches:
+              only:
+                - master

CONTRIBUTING.md

+# Contributing to our project #
+
+Thanks for your help improving the project!
+
+## Getting Help ##
+
+If you have a question about Kubecost or have encountered problems using it,
+you can start by asking a question on [Slack](https://join.slack.com/t/kubecost/shared_invite/enQtNTA2MjQ1NDUyODE5LWFjYzIzNWE4MDkzMmUyZGU4NjkwMzMyMjIyM2E0NGNmYjExZjBiNjk1YzY5ZDI0ZTNhZDg4NjlkMGRkYzFlZTU) or via email at [team@kubecost.com](team@kubecost.com)
+
+## Building ## 
+
+Follow these steps to build from source and deploy:
+
+1. `docker build --rm -f "Dockerfile" -t <repo>/kubecost-cost-model:<tag> .`
+2. Edit the [pulled image](https://github.com/kubecost/cost-model/blob/master/kubernetes/deployment.yaml#L22) in the deployment.yaml to <repo>/kubecost-cost-model:<tag>
+3. Set [this environment variable](https://github.com/kubecost/cost-model/blob/master/kubernetes/deployment.yaml#L30) to the address of your prometheus server
+4. `kubectl create namespace cost-model`
+5. `kubectl apply -f kubernetes/ --namespace cost-model`
+6. `kubectl port-forward --namespace cost-model service/cost-model 9003`
+
+To test, build the cost-model docker container and then push it to a Kubernetes cluster with a running Prometheus.
+
+To confirm that the server is running, you can hit [http://localhost:9003/costDataModel?timeWindow=1d](http://localhost:9003/costDataModel?timeWindow=1d)
+
+## Running the integration tests ##
+To run these tests:
+* Make sure you have a kubeconfig that can point to your cluster, and have permissions to create/modify a namespace called "test"
+* Connect to your the prometheus kubecost emits to on localhost:9003: 
+```kubectl port-forward --namespace kubecost service/kubecost-prometheus-server 9003:80```
+* Temporary workaround: Copy the default.json file in this project at cloud/default.json to /models/default.json on the machine your test is running on. TODO: fix this and inject the cloud/default.json path into provider.go.
+* Navigate to cost-model/test
+* Run ```go test -timeout 700s``` from the testing directory. The tests right now take about 10 minutes (600s) to run because they bring up and down pods and wait for Prometheus to scrape data about them.
+
+
+## Certification of Origin ##
+
+By contributing to this project you certify that your contribution was created in whole or in part by you and that you have the right to submit it under the open source license indicated in the project. In other words, please confirm that you, as a contributor, have the legal right to make the contribution. 
+
+## Committing ###
+
+Please write a commit message with Fixes Issue # if there is an outstanding issue that is fixed. It’s okay to submit a PR without a corresponding issue, just please try be detailed in the description about the problem you’re addressing.
+
+Please run go fmt on the project directory. Lint can be okay (for example, comments on exported functions are nice but not required on the server). 
+
+Please email us (team@kubecost.com) or reach out to us on [Slack](https://join.slack.com/t/kubecost/shared_invite/enQtNTA2MjQ1NDUyODE5LWFjYzIzNWE4MDkzMmUyZGU4NjkwMzMyMjIyM2E0NGNmYjExZjBiNjk1YzY5ZDI0ZTNhZDg4NjlkMGRkYzFlZTU) if you need help or have any questions!

Dockerfile

+FROM golang:latest as build-env
+
+RUN mkdir /app
+WORKDIR /app
+COPY go.mod .
+COPY go.sum .
+
+# Get dependencies - will also be cached if we won't change mod/sum
+RUN go mod download
+# COPY the source code as the last step
+COPY . .
+# Build the binary
+RUN set -e ;\
+    GIT_COMMIT=`git rev-parse HEAD` ;\
+    GIT_DIRTY='' ;\
+    # for our purposes, we only care about dirty .go files ;\
+    if test -n "`git status --porcelain --untracked-files=no | grep '\.go'`"; then \
+      GIT_DIRTY='+dirty' ;\
+    fi ;\
+    cd cmd/costmodel;\
+    CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
+    go build -a -installsuffix cgo \
+        -ldflags "-X main.gitCommit=${GIT_COMMIT}${GIT_DIRTY}" \
+        -o /go/bin/app
+
+FROM alpine:3.10.2
+RUN apk add --update --no-cache ca-certificates
+COPY --from=build-env /go/bin/app /go/bin/app
+ADD ./configs/default.json /models/default.json
+ADD ./configs/azure.json /models/azure.json
+ADD ./configs/aws.json /models/aws.json
+ADD ./configs/gcp.json /models/gcp.json
+USER 1001
+ENTRYPOINT ["/go/bin/app"]

LICENSE

+
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+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
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+   limitations under the License.

PROMETHEUS.md

+Kubecost allows you to export pricing data to Prometheus and then write custom queries for cost insights. Below are instructions for accomplishing this and a set of example queries to get you started.
+
+## Configuration
+
+After deploying the Kubecost model (see [README](README.md) for more info on installation), configure Prometheus to scrape the `/metrics` endpoint exposed by Kubecost. Below is a sample scrape config:
+
+```
+- job_name: kubecost
+  honor_labels: true
+  scrape_interval: 1m
+  scrape_timeout: 10s
+  metrics_path: /metrics
+  scheme: http
+  static_configs:
+  - targets:
+    - < address of cost-model service> # example: <service-name>.<namespace>:<port>
+``` 
+
+## Example queries
+
+Below are a set of sample queries that can be run after Prometheus begins ingesting Kubecost data:
+
+__Monthly cost of top 5 containers__
+
+```
+topk( 5, 
+  container_memory_allocation_bytes* on(instance) group_left() node_ram_hourly_cost  / 1024 / 1024 / 1024 * 730
+  + 
+  container_cpu_allocation * on(instance) group_left() node_cpu_hourly_cost * 730
+)
+```
+
+__Hourly memory cost for the *default* namespace__
+
+```
+sum(
+  avg(container_memory_allocation_bytes{namespace="default"}) by (instance) / 1024 / 1024 / 1024
+  * 
+  on(instance) group_left() avg(node_ram_hourly_cost) by (instance)
+)
+```
+
+__Monthly cost of currently provisioned nodes__
+
+```
+sum(node_total_hourly_cost) * 730
+```
+
+
+## Available Metrics
+
+**Note:** metrics today have both *instance* and *node* labels. The *instance* label will be deprecated in a future version.
+
+| Metric       | Description                                                                                            |
+| ------------ | ------------------------------------------------------------------------------------------------------ |
+| node_cpu_hourly_cost | Hourly cost per vCPU on this node  |
+| node_gpu_hourly_cost | Hourly cost per GPU on this node  |
+| node_ram_hourly_cost   | Hourly cost per Gb of memory on this node                       |
+| node_total_hourly_cost   | Total node cost per hour                       |
+| container_cpu_allocation   | Average number of CPUs requested/used over last 1m                      |
+| container_gpu_allocation   | Average number of GPUs requested over last 1m                      |
+| container_memory_allocation_bytes   | Average bytes of RAM requested/used over last 1m                 |
+| pod_pvc_allocation   | Bytes provisioned for a PVC attached to a pod                      |
+| pv_hourly_cost   | Hourly cost per GP on a persistent volume                 |

README.md

+## Kubecost
+
+Kubecost models give teams visibility into current and historical Kubernetes spend and resource allocation. These models  provide cost transparency in Kubernetes environments that support multiple applications, teams, departments, etc.
+
+To see more on the functionality of the full Kubecost product, please visit the [features page](https://kubecost.com/#features) on our website. 
+Here is a summary of features enabled by this cost model:
+
+- Real-time cost allocation by Kubernetes service, deployment, namespace, label, statefulset, daemonset, pod, and container
+- Dynamic asset pricing enabled by integrations with AWS, Azure, and GCP billing APIs 
+- Supports on-prem k8s clusters with custom pricing sheets
+- Allocation for in-cluster resources like CPU, GPU, memory, and persistent volumes.
+- Allocation for AWS & GCP out-of-cluster resources like RDS instances and S3 buckets with key (optional)
+- Easily export pricing data to Prometheus with /metrics endpoint ([learn more](PROMETHEUS.md))
+- Free and open source distribution (Apache2 license)
+
+## Requirements
+
+- Kubernetes version 1.8 or higher
+- kube-state-metrics
+- Node exporter
+- Prometheus
+
+## Getting Started
+
+You can deploy Kubecost on any Kubernetes 1.8+ cluster in a matter of minutes, if not seconds. 
+Visit the Kubecost docs for [recommended install options](https://docs.kubecost.com/install). Compared to building from source, installing from Helm is faster and includes all necessary dependencies. 
+
+## Contributing
+
+We :heart: pull requests! See [`CONTRIBUTING.md`](CONTRIBUTING.md) for information on buiding the project from source
+and contributing changes. 
+
+## Licensing
+
+Licensed under the Apache License, Version 2.0 (the "License")
+
+ ## Software stack
+
+Golang application. 
+Prometheus. 
+Kubernetes. 
+
+## Frequently Asked Questions
+
+#### How do you measure the cost of CPU/RAM/GPU/storage for a container, pod, deployment, etc.
+
+The Kubecost model collects pricing data from major cloud providers, e.g. GCP, Azure and AWS, to provide the real-time cost of running workloads. Based on data from these APIs, each container/pod inherits a cost per CPU-hour, GPU-hour, Storage Gb-hour and cost per RAM Gb-hour based on the node where it was running or the class of storage provisioned. This means containers of the same size, as measured by the max of requests or usage, could be charged different resource rates if they are scheduled in seperate regions, on nodes with different usage types (on-demand vs preemptible), etc. 
+
+For on-prem clusters, these resource prices can be configured directly with custom pricing sheets (more below).
+
+Measuring the CPU/RAM/GPU cost of a deployment, service, namespace, etc is the aggregation of its individual container costs.
+
+#### How do you determine RAM/CPU costs for a node when this data isn’t provided by a cloud provider?
+
+When explicit RAM or CPU prices are not provided by your cloud provider, the Kubecost model falls back to the ratio of base CPU and RAM price inputs supplied. The default values for these parameters are based on the marginal resource rates of the cloud provider, but they can be customized within Kubecost.
+
+These base RAM/CPU prices are normalized to ensure the sum of each component is equal to the total price of the node provisioned, based on billing rates from your provider. When the sum of RAM/CPU costs is greater (or less) than the price of the node, then the ratio between the two input prices are held constant.  
+
+As an example, let's imagine a node with 1 CPU and 1 Gb of RAM that costs $20/mo. If your base CPU price is $30 and your RAM Gb price is $10, then these inputs will be normlized to $15 for CPU and $5 for RAM so that the sum equals the cost of the node. Note that the price of a CPU remains 3x the price of a Gb of RAM. 
+
+    NodeHourlyCost = NORMALIZED_CPU_PRICE * # of CPUS + NORMALIZED_RAM_PRICE * # of RAM Gb
+
+#### How do you allocate a specific amount of RAM/CPU to an individual pod or container?
+
+Resources are allocated based on the time-weighted maximum of resource Requests and Usage over the measured period. For example, a pod with no usage and 1 CPU requested for 12 hours out of a 24 hour window would be allocated 12 CPU hours. For pods with BestEffort quality of service (i.e. no requests) allocation is done solely on resource usage. 
+
+#### How do I set my AWS Spot bids for accurate allocation?
+
+Modify [spotCPU](https://github.com/kubecost/cost-model/blob/master/cloud/default.json#L5) and  [spotRAM](https://github.com/kubecost/cost-model/blob/master/cloud/default.json#L7) in default.json to the price of your bid. Allocation will use these bid prices, but it does not take into account what you are actually charged by AWS. Alternatively, you can provide an AWS key to allow access to the Spot data feed. This will provide accurate Spot prices. 
+
+#### Do I need a GCP billing API key?
+
+We supply a global key with a low limit for evaluation, but you will want to supply your own before moving to production.  
+  
+Please reach out with any additional questions on  [Slack](https://join.slack.com/t/kubecost/shared_invite/enQtNTA2MjQ1NDUyODE5LWFjYzIzNWE4MDkzMmUyZGU4NjkwMzMyMjIyM2E0NGNmYjExZjBiNjk1YzY5ZDI0ZTNhZDg4NjlkMGRkYzFlZTU) or via email at [team@kubecost.com](team@kubecost.com). 

cmd/costmodel/main.go

+package main
+
+import (
+	"net/http"
+
+	"github.com/julienschmidt/httprouter"
+	"github.com/kubecost/cost-model/pkg/costmodel"
+	"github.com/kubecost/cost-model/pkg/errors"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"k8s.io/klog"
+)
+
+func Healthz(w http.ResponseWriter, _ *http.Request, _ httprouter.Params) {
+	w.WriteHeader(200)
+	w.Header().Set("Content-Length", "0")
+	w.Header().Set("Content-Type", "text/plain")
+}
+
+func main() {
+	costmodel.Initialize()
+
+	rootMux := http.NewServeMux()
+	costmodel.Router.GET("/healthz", Healthz)
+	rootMux.Handle("/", costmodel.Router)
+	rootMux.Handle("/metrics", promhttp.Handler())
+	klog.Fatal(http.ListenAndServe(":9003", errors.PanicHandlerMiddleware(rootMux)))
+}

configs/aws.json

+{
+    "provider": "custom",
+    "description": "Default prices used to compute allocation between RAM and CPU. AWS pricing API data still used for total node cost.",
+    "CPU": "0.031611",
+    "spotCPU": "0.006655",
+    "RAM": "0.004237",
+    "GPU": "0.95",
+    "spotRAM": "0.000892",
+    "storage": "0.00005479452",
+    "zoneNetworkEgress": "0.01",
+    "regionNetworkEgress": "0.01",
+    "internetNetworkEgress": "0.143",
+    "spotLabel": "kops.k8s.io/instancegroup",
+    "spotLabelValue": "spotinstance-nodes",
+    "awsServiceKeyName": "AKIAXW6UVLRRY5RQGGUX",
+    "awsServiceKeySecret": "",
+    "awsSpotDataRegion":"us-east-2",
+    "awsSpotDataBucket": "kc-test-spot",
+    "awsSpotDataPrefix": "spotdata",
+    "athenaBucketName": "s3://aws-athena-query-results-530337586275-us-east-1",
+    "athenaRegion": "us-east-1",
+    "athenaDatabase": "athenacurcfn_athena_test",
+    "athenaTable": "athena_test",
+    "projectID": "530337586275"
+}

configs/azure.json

+{
+    "provider": "Azure",
+    "description": "Azure estimates based on April 2019 advertised prices",
+    "CPU": "0.03900",
+    "spotCPU": "0.007764", 
+    "RAM": "0.001917", 
+    "spotRAM": "0.000382",
+    "storage": "0.00005479452" ,
+    "zoneNetworkEgress": "0.01",
+    "regionNetworkEgress": "0.01",
+    "internetNetworkEgress": "0.0725",
+    "azureSubscriptionID": "",
+    "azureClientID": "" ,
+    "azureClientSecret": "" ,
+    "azureTenantID": ""
+}

configs/default.json

+{
+    "provider": "custom",
+    "description": "Default prices based on GCP us-central1",
+    "CPU": "0.031611",
+    "spotCPU": "0.006655",
+    "RAM": "0.004237",
+    "spotRAM": "0.000892",
+    "GPU": "0.95",
+    "storage": "0.00005479452",
+    "zoneNetworkEgress": "0.01",
+    "regionNetworkEgress": "0.01",
+    "internetNetworkEgress": "0.12"
+}
\ No newline at end of file

configs/gcp.json

+{
+    "provider": "custom",
+    "description": "Default prices used to compute allocation between RAM and CPU. AWS pricing API data still used for total node cost.",
+    "CPU": "0.031611",
+    "spotCPU": "0.006655",
+    "RAM": "0.004237",
+    "spotRAM": "0.000892",
+    "projectID": "guestbook-227502",
+    "storage": "0.00005479452",
+    "zoneNetworkEgress": "0.01",
+    "regionNetworkEgress": "0.01",
+    "internetNetworkEgress": "0.12",
+    "billingDataDataset": "billing_data.gcp_billing_export_v1_01AC9F_74CF1D_5565A2"
+}

configs/pricing_schema.csv

+EndTimestamp,InstanceID,AssetClass,InstanceIDField,InstanceType,MarketPriceHourly,Version
+2019-04-17 23:34:22 UTC,gke-standard-cluster-1-pool-1-91dc432d-cg69,node,metadata.name,,0.1337,

deploying-as-a-pod.md

+## Deploying as a pod
+
+See this page for all [Kubecost install options](http://docs.kubecost.com/install).
+
+If you would like to deploy the cost model (w/o dashboards) directly a pod on your cluster, complete the steps listed below. 
+
+1. Set [this environment variable](https://github.com/kubecost/cost-model/blob/master/kubernetes/deployment.yaml#L30) to the address of your prometheus server
+2. `kubectl create namespace cost-model`
+3. `kubectl apply -f kubernetes/ --namespace cost-model`
+4. `kubectl port-forward --namespace cost-model service/cost-model 9003`
+
+To test that the server is running, you can hit [http://localhost:9003/costDataModel?timeWindow=1d](http://localhost:9003/costDataModel?timeWindow=1d)
+
+**Note:** This approach provides less functionality compared to other install options referenced above. Also, Prometheus and kube-state-metrics are external dependencies for this installation path.

go.mod

+module github.com/kubecost/cost-model
+
+replace github.com/golang/lint => golang.org/x/lint v0.0.0-20180702182130-06c8688daad7
+
+require (
+	cloud.google.com/go v0.34.0
+	contrib.go.opencensus.io/exporter/ocagent v0.5.0 // indirect
+	github.com/Azure/azure-sdk-for-go v24.1.0+incompatible
+	github.com/Azure/go-autorest v11.3.2+incompatible
+	github.com/aws/aws-sdk-go v1.28.9
+	github.com/dimchansky/utfbom v1.1.0 // indirect
+	github.com/etcd-io/bbolt v1.3.3
+	github.com/getsentry/sentry-go v0.6.1
+	github.com/google/martian v2.1.0+incompatible // indirect
+	github.com/google/uuid v1.1.1
+	github.com/googleapis/gax-go v2.0.2+incompatible // indirect
+	github.com/gophercloud/gophercloud v0.2.0 // indirect
+	github.com/jszwec/csvutil v1.2.1
+	github.com/julienschmidt/httprouter v1.2.0
+	github.com/lib/pq v1.2.0
+	github.com/patrickmn/go-cache v2.1.0+incompatible
+	github.com/prometheus/client_golang v1.0.0
+	github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90
+	github.com/satori/go.uuid v1.2.0 // indirect
+	github.com/shopspring/decimal v0.0.0-20180709203117-cd690d0c9e24 // indirect
+	go.etcd.io/bbolt v1.3.3 // indirect
+	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
+	golang.org/x/sync v0.0.0-20190423024810-112230192c58
+	google.golang.org/api v0.4.0
+	k8s.io/api v0.0.0-20190913080256-21721929cffa
+	k8s.io/apimachinery v0.0.0-20190913075812-e119e5e154b6
+	k8s.io/client-go v0.0.0-20190620085101-78d2af792bab
+	k8s.io/klog v0.4.0
+	sigs.k8s.io/yaml v1.1.0
+)
+
+go 1.13

kubernetes/cluster-role-binding.yaml

+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: cost-model
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole