fix: ignore errors on duplicate SetHeader calls

Updating gRPC library to 1.47 version makes it more picky about the
duplicate calls to `SetHeader`. Due to the nature of proxying, we might
try to set it multiple times, so simply ignore the error (doing best
effort to set it correctly, but with multiple upstreams setting headers
from all upstreams is not possible).

Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>

.codecov.yml

@@ -1,18 +1,18 @@
 # THIS FILE WAS AUTOMATICALLY GENERATED, PLEASE DO NOT EDIT.
 #
-# Generated on 2021-03-25T21:15:43Z by kres 424ae88-dirty.
+# Generated on 2022-06-06T17:35:55Z by kres 65530e7.
 
 codecov:
-require_ci_to_pass: false
+  require_ci_to_pass: false
 
 coverage:
-status:
-  project:
-    default:
-      target: 50%
-      threshold: 0.5%
-      base: auto
-      if_ci_failed: success
-  patch: off
+  status:
+    project:
+      default:
+        target: 50%
+        threshold: 0.5%
+        base: auto
+        if_ci_failed: success
+    patch: off
 
 comment: false

.conform.yaml

@@ -1,12 +1,16 @@
 # THIS FILE WAS AUTOMATICALLY GENERATED, PLEASE DO NOT EDIT.
 #
-# Generated on 2021-03-25T21:16:46Z by kres 424ae88-dirty.
+# Generated on 2022-06-06T17:35:55Z by kres 65530e7.
 
+---
 policies:
 - type: commit
   spec:
     dco: true
-    gpg: false
+    gpg:
+      required: true
+      identity:
+        gitHubOrganization: siderolabs
     spellcheck:
       locale: US
     maximumOfOneCommit: true
@@ -19,4 +23,4 @@ policies:
       required: true
     conventional:
       types: ["chore","docs","perf","refactor","style","test","release"]
-      scopes: ["*"]
+      scopes: [".*"]

.drone.yml

@@ -1,7 +1,7 @@
 ---
 # THIS FILE WAS AUTOMATICALLY GENERATED, PLEASE DO NOT EDIT.
 #
-# Generated on 2021-03-25T21:15:43Z by kres 424ae88-dirty.
+# Generated on 2022-06-06T17:35:55Z by kres 65530e7.
 
 kind: pipeline
 type: kubernetes
@@ -122,9 +122,59 @@ steps:
   depends_on:
   - base
 
+- name: release-notes
+  pull: always
+  image: autonomy/build-container:latest
+  commands:
+  - make release-notes
+  volumes:
+  - name: outer-docker-socket
+    path: /var/outer-run
+  - name: docker-socket
+    path: /var/run
+  - name: buildx
+    path: /root/.docker/buildx
+  - name: ssh
+    path: /root/.ssh
+  when:
+    event:
+    - tag
+  depends_on:
+  - unit-tests
+  - coverage
+  - lint
+
+- name: release
+  pull: always
+  image: plugins/github-release
+  settings:
+    api_key:
+      from_secret: github_token
+    checksum:
+    - sha256
+    - sha512
+    draft: true
+    files:
+    - _out/*
+    note: _out/RELEASE_NOTES.md
+  volumes:
+  - name: outer-docker-socket
+    path: /var/outer-run
+  - name: docker-socket
+    path: /var/run
+  - name: buildx
+    path: /root/.docker/buildx
+  - name: ssh
+    path: /root/.ssh
+  when:
+    event:
+    - tag
+  depends_on:
+  - release-notes
+
 services:
 - name: docker
-  image: docker:19.03-dind
+  image: docker:20.10-dind
   entrypoint:
   - dockerd
   commands:

.golangci.yml

@@ -1,7 +1,6 @@
 # THIS FILE WAS AUTOMATICALLY GENERATED, PLEASE DO NOT EDIT.
 #
-# Generated on 2021-03-25T21:15:43Z by kres 424ae88-dirty.
-
+# Generated on 2022-06-06T17:35:55Z by kres 65530e7.
 
 # options for analysis running
 run:
@@ -22,7 +21,6 @@ output:
   uniq-by-line: true
   path-prefix: ""
 
-
 # all available settings of specific linters
 linters-settings:
   dogsled:
@@ -41,6 +39,13 @@ linters-settings:
     local-prefixes: github.com/talos-systems/grpc-proxy
   gocognit:
     min-complexity: 30
+  ireturn:
+    allow:
+      - anon
+      - error
+      - empty
+      - stdlib
+      - github.com\/talos-systems\/kres\/internal\/dag.Node
   nestif:
     min-complexity: 5
   goconst:
@@ -91,7 +96,7 @@ linters-settings:
     require-explanation: false
     require-specific: true
   rowserrcheck: {}
-  testpackage:
+  testpackage: {}
   unparam:
     check-exported: false
   unused:
@@ -116,23 +121,33 @@ linters-settings:
 
 linters:
   enable-all: true
+  disable-all: false
+  fast: false
   disable:
+    - exhaustruct
+    - exhaustivestruct
+    - forbidigo
+    - funlen
     - gas
-    - typecheck
     - gochecknoglobals
     - gochecknoinits
-    - funlen
     - godox
-    - gomnd
     - goerr113
+    - gomnd
+    - gomoddirectives
     - nestif
-    - wrapcheck
     - paralleltest
-    - exhaustivestruct
-    - forbidigo
-  disable-all: false
-  fast: false
-
+    - promlinter
+    - tagliatelle
+    - thelper
+    - typecheck
+    - varnamelen
+    - wrapcheck
+    # abandoned linters for which golangci shows the warning that the repo is archived by the owner
+    - interfacer
+    - maligned
+    - golint
+    - scopelint
 
 issues:
   exclude: []
@@ -141,10 +156,8 @@ issues:
   exclude-case-sensitive: false
   max-issues-per-linter: 10
   max-same-issues: 3
-
   new: false
 
 severity:
   default-severity: error
-
   case-sensitive: false

Dockerfile

@@ -2,22 +2,21 @@
 
 # THIS FILE WAS AUTOMATICALLY GENERATED, PLEASE DO NOT EDIT.
 #
-# Generated on 2021-03-25T21:36:57Z by kres 424ae88-dirty.
+# Generated on 2022-06-06T17:35:55Z by kres 65530e7.
 
 ARG TOOLCHAIN
 
+# cleaned up specs and compiled versions
+FROM scratch AS generate
+
 # runs markdownlint
-FROM node:14.8.0-alpine AS lint-markdown
-RUN npm i -g markdownlint-cli@0.23.2
-RUN npm i sentences-per-line@0.2.1
+FROM node:18.2.0-alpine AS lint-markdown
 WORKDIR /src
+RUN npm i -g markdownlint-cli@0.31.1
+RUN npm i sentences-per-line@0.2.1
 COPY .markdownlint.json .
 COPY ./README.md ./README.md
-RUN markdownlint --ignore "**/node_modules/**" --ignore '**/hack/chglog/**' --rules /node_modules/sentences-per-line/index.js .
-
-# collects proto specs
-FROM scratch AS proto-specs
-ADD testservice/api/test.proto /testservice/
+RUN markdownlint --ignore "CHANGELOG.md" --ignore "**/node_modules/**" --ignore '**/hack/chglog/**' --rules node_modules/sentences-per-line/index.js .
 
 # base toolchain image
 FROM ${TOOLCHAIN} AS toolchain
@@ -28,18 +27,17 @@ FROM toolchain AS tools
 ENV GO111MODULE on
 ENV CGO_ENABLED 0
 ENV GOPATH /go
-RUN curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b /bin v1.38.0
+ARG GOLANGCILINT_VERSION
+RUN curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/${GOLANGCILINT_VERSION}/install.sh | bash -s -- -b /bin ${GOLANGCILINT_VERSION}
 ARG GOFUMPT_VERSION
-RUN cd $(mktemp -d) \
-	&& go mod init tmp \
-	&& go get mvdan.cc/gofumpt/gofumports@${GOFUMPT_VERSION} \
-	&& mv /go/bin/gofumports /bin/gofumports
-ARG PROTOBUF_GO_VERSION
-RUN go install google.golang.org/protobuf/cmd/protoc-gen-go@v${PROTOBUF_GO_VERSION}
-RUN mv /go/bin/protoc-gen-go /bin
-ARG GRPC_GO_VERSION
-RUN go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v${GRPC_GO_VERSION}
-RUN mv /go/bin/protoc-gen-go-grpc /bin
+RUN go install mvdan.cc/gofumpt@${GOFUMPT_VERSION} \
+	&& mv /go/bin/gofumpt /bin/gofumpt
+ARG GOIMPORTS_VERSION
+RUN go install golang.org/x/tools/cmd/goimports@${GOIMPORTS_VERSION} \
+	&& mv /go/bin/goimports /bin/goimports
+ARG DEEPCOPY_VERSION
+RUN go install github.com/siderolabs/deep-copy@${DEEPCOPY_VERSION} \
+	&& mv /go/bin/deep-copy /bin/deep-copy
 
 # tools and sources
 FROM tools AS base
@@ -52,15 +50,13 @@ COPY ./proxy ./proxy
 COPY ./testservice ./testservice
 RUN --mount=type=cache,target=/go/pkg go list -mod=readonly all >/dev/null
 
-# runs protobuf compiler
-FROM tools AS proto-compile
-COPY --from=proto-specs / /
-RUN protoc -I/testservice --go_out=paths=source_relative:/testservice --go-grpc_out=paths=source_relative:/testservice /testservice/test.proto
-
 # runs gofumpt
 FROM base AS lint-gofumpt
-RUN find . -name '*.pb.go' | xargs -r rm
-RUN FILES="$(gofumports -l -local github.com/talos-systems/grpc-proxy .)" && test -z "${FILES}" || (echo -e "Source code is not formatted with 'gofumports -w -local github.com/talos-systems/grpc-proxy .':\n${FILES}"; exit 1)
+RUN FILES="$(gofumpt -l .)" && test -z "${FILES}" || (echo -e "Source code is not formatted with 'gofumpt -w .':\n${FILES}"; exit 1)
+
+# runs goimports
+FROM base AS lint-goimports
+RUN FILES="$(goimports -l -local github.com/talos-systems/grpc-proxy .)" && test -z "${FILES}" || (echo -e "Source code is not formatted with 'goimports -w -local github.com/talos-systems/grpc-proxy .':\n${FILES}"; exit 1)
 
 # runs golangci-lint
 FROM base AS lint-golangci-lint
@@ -76,11 +72,7 @@ RUN --mount=type=cache,target=/root/.cache/go-build --mount=type=cache,target=/g
 # runs unit-tests
 FROM base AS unit-tests-run
 ARG TESTPKGS
-RUN --mount=type=cache,target=/root/.cache/go-build --mount=type=cache,target=/go/pkg --mount=type=cache,target=/tmp go test -v -covermode=atomic -coverprofile=coverage.txt -count 1 ${TESTPKGS}
-
-# cleaned up specs and compiled versions
-FROM scratch AS generate
-COPY --from=proto-compile /testservice/ /testservice/
+RUN --mount=type=cache,target=/root/.cache/go-build --mount=type=cache,target=/go/pkg --mount=type=cache,target=/tmp go test -v -covermode=atomic -coverprofile=coverage.txt -coverpkg=${TESTPKGS} -count 1 ${TESTPKGS}
 
 FROM scratch AS unit-tests
 COPY --from=unit-tests-run /src/coverage.txt /coverage.txt