Merge pull request #26 from ElmCompany/feature/new-chart-service-proxy

feat: NEW CHart- Service Proxy - Envoy

charts/service-proxy/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/service-proxy/Chart.yaml

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+apiVersion: v2
+name: service-proxy
+description: A Helm chart for Deployed Envoy Proxy with Less Configuration effort
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.2.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "v1.25-latest"

charts/service-proxy/README.md

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+# Overview
+Envoy proxy for any service, easy to install & easy to configure.
+Ability to proxy:
+ - https traffic & expose it as http traffic
+ - S3 endpoint (Cloud or on-prem like MinIO)
+
+
+# Values
+
+Check default Values of this chart [here]( 
+https://github.com/ElmCompany/helm-charts/blob/master/charts/service-proxy/values.yaml)
+
+# How to install the app 
+
+**Set Elm Repo**
+
+```sh
+
+helm repo add elm https://raw.githubusercontent.com/ElmCompany/helm-charts/gh-pages
+helm repo update
+```
+
+**Use it** `helm install elm/service-proxy -f values.sample-http-https.yaml`
+
+# Authors
+
+This chart is maintained by: 
+- @abdennour
+
+# License
+
+LGPL v3

charts/service-proxy/files/envoy-modes/envoy-http-https.yaml

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+static_resources:
+  listeners:
+  - address:
+      socket_address:
+        address: 0.0.0.0
+        port_value: {{ .Values.proxyPorts.webPort }}
+    filter_chains:
+    - filters:
+      - name: envoy.filters.network.http_connection_manager
+        typed_config:
+          "@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
+          codec_type: AUTO
+          stat_prefix: ingress_http
+          route_config:
+            name: local_route
+            virtual_hosts:
+            - name: app
+              domains:
+              - "*"
+              routes:
+              - match:
+                  prefix: "/"
+                route:
+                  cluster: {{ include "service-proxy.fullname" . }}
+                  auto_host_rewrite: true
+                  internal_redirect_policy:
+                    max_internal_redirects: 10
+                    redirect_response_codes:
+                    - 301
+                    - 302
+                    predicates:
+                    - name: envoy.internal_redirect_predicates.safe_cross_scheme
+                      typed_config:
+                        '@type': type.googleapis.com/envoy.extensions.internal_redirect.safe_cross_scheme.v3.SafeCrossSchemeConfig
+                    allow_cross_scheme_redirect: false
+          http_filters:
+          - name: envoy.filters.http.router
+            typed_config:
+              "@type": type.googleapis.com/envoy.extensions.filters.http.router.v3.Router
+
+  clusters:
+  - name: {{ include "service-proxy.fullname" . }}
+    type: STRICT_DNS
+    lb_policy: ROUND_ROBIN
+    load_assignment:
+      cluster_name: {{ include "service-proxy.fullname" . }}
+      endpoints:
+      - lb_endpoints:
+        - endpoint:
+            address:
+              socket_address:
+                address: {{ required "Backend Service ADDRESS is Required" .Values.backendService.address }}
+                port_value: {{ .Values.backendService.port }}
+    transport_socket:
+      name: envoy.transport_sockets.tls
+      typed_config:
+        "@type": type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.UpstreamTlsContext
+        {{- if (include "service-proxy.backendServiceHasCaCert" .) }}
+        common_tls_context:
+          validation_context:
+            match_typed_subject_alt_names:
+            - san_type: DNS
+              matcher:
+                exact: {{ .Values.backendService.address }}
+            trusted_ca:
+              filename: /tmp/certs/backend-ca.crt
+        {{- end }}
+
+admin:
+  access_log_path: "/dev/null"
+  address:
+    socket_address:
+      address: 0.0.0.0
+      port_value: {{ .Values.proxyPorts.adminPort }}

charts/service-proxy/files/envoy-modes/envoy-https-passthrough.yaml

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+static_resources:
+  listeners:
+  - address:
+      socket_address:
+        address: 0.0.0.0
+        port_value: {{ .Values.proxyPorts.webPort }}
+    filter_chains:
+    - filters:
+      - name: envoy.filters.network.tcp_proxy
+        typed_config:
+          "@type": type.googleapis.com/envoy.extensions.filters.network.tcp_proxy.v3.TcpProxy
+          cluster: {{ include "service-proxy.fullname" . }}
+          stat_prefix: https_passthrough
+
+  clusters:
+  - name: {{ include "service-proxy.fullname" . }}
+    type: STRICT_DNS
+    lb_policy: ROUND_ROBIN
+    load_assignment:
+      cluster_name: {{ include "service-proxy.fullname" . }}
+      endpoints:
+      - lb_endpoints:
+        - endpoint:
+            address:
+              socket_address:
+                address:  {{ required "Backend Service ADDRESS is Required" .Values.backendService.address }}
+                port_value: {{ .Values.backendService.port }}
+    transport_socket:
+      name: envoy.transport_sockets.tls
+      typed_config:
+        "@type": type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.UpstreamTlsContext
+        sni: {{ .Values.backendService.address }}
+admin:
+  access_log_path: "/dev/null"
+  address:
+    socket_address:
+      address: 0.0.0.0
+      port_value: {{ .Values.proxyPorts.adminPort }}

charts/service-proxy/files/envoy-modes/envoy-redis.yaml

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+static_resources:
+  listeners:
+  - name: redis_listener
+    address:
+      socket_address:
+        address: 0.0.0.0
+        port_value: {{ .Values.proxyPorts.webPort }}
+    filter_chains:
+    - filters:
+      - name: envoy.filters.network.redis_proxy
+        typed_config:
+          "@type": type.googleapis.com/envoy.extensions.filters.network.redis_proxy.v3.RedisProxy
+          stat_prefix: egress_redis
+          settings:
+            op_timeout: 5s
+          prefix_routes:
+            catch_all_route:
+              cluster: {{ include "service-proxy.fullname" . }}
+  clusters:
+  - name: {{ include "service-proxy.fullname" . }}
+    type: STRICT_DNS  # static
+    lb_policy: MAGLEV
+    load_assignment:
+      cluster_name: {{ include "service-proxy.fullname" . }}
+      endpoints:
+      - lb_endpoints:
+        - endpoint:
+            address:
+              socket_address:
+                address: {{ required "Redis Backend Service ADDRESS is Required" .Values.backendService.address }}
+                port_value: {{ .Values.backendService.port }}
+admin:
+  access_log_path: "/dev/null"
+  address:
+    socket_address:
+      address: 0.0.0.0
+      port_value: {{ .Values.proxyPorts.adminPort }}

charts/service-proxy/files/envoy-modes/envoy-s3.yaml

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+static_resources:
+  listeners:
+  - address:
+      socket_address:
+        address: 0.0.0.0
+        port_value: {{ .Values.proxyPorts.webPort }}
+    filter_chains:
+    - filters:
+      - name: envoy.filters.network.http_connection_manager
+        typed_config:
+          "@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
+          codec_type: AUTO
+          stat_prefix: ingress_http
+          route_config:
+            name: local_route
+            virtual_hosts:
+            - name: app
+              domains:
+              - "*"
+              routes:
+              - match:
+                  prefix: "/"
+                route:
+                  cluster: {{ include "service-proxy.fullname" . }}
+                  # auto_host_rewrite: true
+                  # internal_redirect_policy:
+                  #   max_internal_redirects: 10
+                  #   redirect_response_codes:
+                  #   - 301
+                  #   - 302
+                  #   predicates:
+                  #   - name: envoy.internal_redirect_predicates.safe_cross_scheme
+                  #     typed_config:
+                  #       '@type': type.googleapis.com/envoy.extensions.internal_redirect.safe_cross_scheme.v3.SafeCrossSchemeConfig
+                  #   allow_cross_scheme_redirect: false
+          http_filters:
+          # docs: https://envoyproxy.io/docs/envoy/latest/api-v3/extensions/filters/http/aws_request_signing/v3/aws_request_signing.proto.html
+          - name: sigv4-signing
+            typed_config:
+              "@type": type.googleapis.com/envoy.extensions.filters.http.aws_request_signing.v3.AwsRequestSigning
+              service_name: s3
+              # host_rewrite: s3.amazonaws.com
+              host_rewrite: {{ required "S3 Endpoint (.backendService.address) is Required" .Values.backendService.address }}
+              region: us-east-1
+              use_unsigned_payload: true
+              match_excluded_headers:
+                - prefix: x-envoy
+                - prefix: x-forwarded
+                - exact: x-amzn-trace-id
+          - name: envoy.filters.http.router
+            typed_config:
+              "@type": type.googleapis.com/envoy.extensions.filters.http.router.v3.Router
+
+  clusters:
+  - name: {{ include "service-proxy.fullname" . }}
+    connect_timeout: 0.5s
+    type: LOGICAL_DNS
+    # type: STRICT_DNS
+    lb_policy: ROUND_ROBIN
+    load_assignment:
+      cluster_name: {{ include "service-proxy.fullname" . }}
+      endpoints:
+      - lb_endpoints:
+        - endpoint:
+            address:
+              socket_address:
+                address: {{ required "S3 Endpoint (.backendService.address) is Required" .Values.backendService.address }}
+                port_value: {{ .Values.backendService.port }}
+    transport_socket:
+      name: envoy.transport_sockets.tls
+      typed_config:
+        "@type": type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.UpstreamTlsContext
+
+admin:
+  access_log_path: "/dev/null"
+  address:
+    socket_address:
+      address: 0.0.0.0
+      port_value: {{ .Values.proxyPorts.adminPort }}

charts/service-proxy/templates/NOTES.txt

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+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "service-proxy.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "service-proxy.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "service-proxy.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "service-proxy.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
+{{- end }}