Add preliminary proxy code and supporting files (#1)

- Added base go project
- Added GitHub Actions workflows
- Added utility scripts

.github/workflows/build-and-push.yml

@@ -0,0 +1,33 @@
+name: Build and Push
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    env:
+      CI: true
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build develop image
+        run: make build.develop
+      - name: Run lint
+        run: ./scripts/develop.sh make fmt
+      - name: Run unit test
+        run: ./scripts/develop.sh make test
+  build:
+    needs: test
+    runs-on: ubuntu-latest
+    env:
+      IMAGE_NAME: kserve/rest-proxy
+      IMAGE_TAG: latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build runtime image
+        run: make build
+      - name: Log in to Docker Hub
+        run: docker login -u ${{ secrets.DOCKER_USER }} -p ${{ secrets.DOCKER_ACCESS_TOKEN }}
+      - name: Push to Docker Hub
+        run: docker push ${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }}

.github/workflows/unit-test.yml

@@ -0,0 +1,19 @@
+name: Unit Test and Lint
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    env:
+      CI: true
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build develop image
+        run: make build.develop
+      - name: Run lint
+        run: ./scripts/develop.sh make fmt
+      - name: Run unit test
+        run: ./scripts/develop.sh make test

.gitignore

@@ -13,3 +13,9 @@
 
 # Dependency directories (remove the comment below to include it)
 # vendor/
+
+google/
+
+# general
+.env
+.bash_history

.golangci.yaml

@@ -0,0 +1,306 @@
+# Copyright 2021 IBM Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# This file contains all available configuration options for golanci-lint
+
+# options for analysis running
+run:
+  # default concurrency is a available CPU number
+  # concurrency: 4
+
+  # timeout for analysis, e.g. 30s, 5m, default is 1m
+  timeout: 5m
+
+  # exit code when at least one issue was found, default is 1
+  issues-exit-code: 1
+
+  # include test files or not, default is true
+  tests: true
+
+  # list of build tags, all linters use it. Default is empty list.
+  # build-tags:
+  #   - mytag
+
+  # which dirs to skip: issues from them won't be reported;
+  # can use regexp here: generated.*, regexp is applied on full path;
+  # default value is empty list, but default dirs are skipped independently
+  # from this option's value (see skip-dirs-use-default).
+  # "/" will be replaced by current OS file path separator to properly work
+  # on Windows.
+  # skip-dirs:
+  #   - src/external_libs
+  #   - autogenerated_by_my_lib
+
+  # default is true. Enables skipping of directories:
+  #   vendor$, third_party$, testdata$, examples$, Godeps$, builtin$
+  skip-dirs-use-default: true
+
+  # which files to skip: they will be analyzed, but issues from them
+  # won't be reported. Default value is empty list, but there is
+  # no need to include all autogenerated files, we confidently recognize
+  # autogenerated files. If it's not please let us know.
+  # "/" will be replaced by current OS file path separator to properly work
+  # on Windows.
+  # skip-files:
+  #   - ".*\\.my\\.go$"
+  #   - lib/bad.go
+
+  # by default isn't set. If set we pass it to "go list -mod={option}". From "go help modules":
+  # If invoked with -mod=readonly, the go command is disallowed from the implicit
+  # automatic updating of go.mod described above. Instead, it fails when any changes
+  # to go.mod are needed. This setting is most useful to check that go.mod does
+  # not need updates, such as in a continuous integration and testing system.
+  # If invoked with -mod=vendor, the go command assumes that the vendor
+  # directory holds the correct copies of dependencies and ignores
+  # the dependency descriptions in go.mod.
+  # modules-download-mode: readonly|release|vendor
+
+  # Allow multiple parallel golangci-lint instances running.
+  # If false (default) - golangci-lint acquires file lock on start.
+  allow-parallel-runners: false
+
+# output configuration options
+output:
+  # colored-line-number|line-number|json|tab|checkstyle|code-climate, default is "colored-line-number"
+  format: colored-line-number
+
+  # print lines of code with issue, default is true
+  print-issued-lines: true
+
+  # print linter name in the end of issue text, default is true
+  print-linter-name: true
+
+  # make issues output unique by line, default is true
+  uniq-by-line: true
+
+  # add a prefix to the output file references; default is no prefix
+  path-prefix: ""
+
+linters:
+  # please, do not use `enable-all`: it's deprecated and will be removed soon.
+  # inverted configuration with `enable-all` and `disable` is not scalable during updates of golangci-lint
+  disable-all: true # disable the defaults and re-enable them explicitly
+  fast: false
+  enable:
+    # These are the defaults for golangci-lint
+    - deadcode
+    - errcheck
+    - gosimple
+    - govet
+    - ineffassign
+    - staticcheck
+    - structcheck
+    - typecheck
+    - unused
+    - varcheck
+
+    # Also enable these
+    - goconst
+    - gofmt
+    - goimports
+
+  # don't enable:
+  # - golint
+  # - whitespace
+  # - asciicheck
+  # - bodyclose
+  # - depguard
+  # - dogsled
+  # - dupl
+  # - exhaustive
+  # - funlen
+  # - gochecknoinits
+  # - gocritic
+  # - gocyclo
+  # - gomnd
+  # - goprintffuncname
+  # - gosec
+  # - interfacer
+  # - lll
+  # - misspell
+  # - nakedret
+  # - noctx
+  # - nolintlint
+  # - rowserrcheck
+  # - scopelint
+  # - stylecheck
+  # - unconvert
+  # - unparam
+  # - gochecknoglobals
+  # - gocognit
+  # - godot
+  # - godox
+  # - goerr113
+  # - maligned
+  # - nestif
+  # - prealloc
+  # - testpackage
+  # - wsl
+
+# all available settings of specific linters
+linters-settings:
+  errcheck:
+    # report about not checking of errors in type assertions: `a := b.(MyStruct)`;
+    # default is false: such cases aren't reported by default.
+    check-type-assertions: false
+
+    # report about assignment of errors to blank identifier: `num, _ := strconv.Atoi(numStr)`;
+    # default is false: such cases aren't reported by default.
+    check-blank: false
+
+    # [deprecated] comma-separated list of pairs of the form pkg:regex
+    # the regex is used to ignore names within pkg. (default "fmt:.*").
+    # see https://github.com/kisielk/errcheck#the-deprecated-method for details
+    ignore: fmt:.*
+
+    # path to a file containing a list of functions to exclude from checking
+    # see https://github.com/kisielk/errcheck#excluding-functions for details
+    # exclude: /path/to/file.txt
+  goconst:
+    # minimal length of string constant, 3 by default
+    min-len: 3
+    # minimal occurrences count to trigger, 3 by default
+    min-occurrences: 3
+  gofmt:
+    # simplify code: gofmt with `-s` option, true by default
+    simplify: true
+  goimports:
+    # put imports beginning with prefix after 3rd-party packages;
+    # it's a comma-separated list of prefixes
+    local-prefixes: github.com/org/project
+  golint:
+    # minimal confidence for issues, default is 0.8
+    min-confidence: 0.8
+  govet:
+    # report about shadowed variables
+    check-shadowing: true
+
+    # settings per analyzer
+    settings:
+      printf: # analyzer name, run `go tool vet help` to see all analyzers
+        funcs: # run `go tool vet help printf` to see available settings for `printf` analyzer
+          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Infof
+          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Warnf
+          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Errorf
+          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Fatalf
+
+    # enable or disable analyzers by name
+    # enable:
+    #   - atomic
+    enable-all: true
+    # disable:
+    #   - shadow
+    disable-all: false
+  unused:
+    # treat code as a program (not a library) and report unused exported identifiers; default is false.
+    # XXX: if you enable this setting, unused will report a lot of false-positives in text editors:
+    # if it's called for subdir of a project it can't find funcs usages. All text editor integrations
+    # with golangci-lint call it on a directory with the changed file.
+    check-exported: false
+  whitespace:
+    multi-if: false # Enforces newlines (or comments) after every multi-line if statement
+    multi-func: false # Enforces newlines (or comments) after every multi-line function signature
+
+issues:
+  # List of regexps of issue texts to exclude, empty list by default.
+  # But independently from this option we use default exclude patterns,
+  # it can be disabled by `exclude-use-default: false`. To list all
+  # excluded by default patterns execute `golangci-lint run --help`
+  # exclude:
+  #   - abcdef
+
+  # Excluding configuration per-path, per-linter, per-text and per-source
+  exclude-rules:
+    # Exclude some linters from running on tests files.
+    - path: _test\.go
+      linters:
+        - gocyclo
+        - errcheck
+        - dupl
+        - gosec
+
+    # Exclude known linters from partially hard-vendored code,
+    # which is impossible to exclude via "nolint" comments.
+    - path: internal/hmac/
+      text: "weak cryptographic primitive"
+      linters:
+        - gosec
+
+    # Exclude some staticcheck messages
+    - linters:
+        - staticcheck
+      text: "SA9003:"
+
+    # Exclude lll issues for long lines with go:generate
+    - linters:
+        - lll
+      source: "^//go:generate "
+
+  # Independently from option `exclude` we use default exclude patterns,
+  # it can be disabled by this option. To list all
+  # excluded by default patterns execute `golangci-lint run --help`.
+  # Default value for this option is true.
+  exclude-use-default: true
+
+  # The default value is false. If set to true exclude and exclude-rules
+  # regular expressions become case sensitive.
+  exclude-case-sensitive: false
+
+  # The list of ids of default excludes to include or disable. By default it's empty.
+  # include:
+  #   - EXC0002 # disable excluding of issues about comments from golint
+
+  # Maximum issues count per one linter. Set to 0 to disable. Default is 50.
+  max-issues-per-linter: 50
+
+  # Maximum count of issues with the same text. Set to 0 to disable. Default is 3.
+  max-same-issues: 3
+
+  # Show only new issues: if there are unstaged changes or untracked files,
+  # only those changes are analyzed, else only changes in HEAD~ are analyzed.
+  # It's a super-useful option for integration of golangci-lint into existing
+  # large codebase. It's not practical to fix all existing issues at the moment
+  # of integration: much better don't allow issues in new code.
+  # Default is false.
+  new: false
+
+  # Show only new issues created after git revision `REV`
+  # new-from-rev: REV
+
+  # Show only new issues created in git patch with set file path.
+  # new-from-patch: path/to/patch/file
+
+severity:
+  # Default value is empty string.
+  # Set the default severity for issues. If severity rules are defined and the issues
+  # do not match or no severity is provided to the rule this will be the default
+  # severity applied. Severities should match the supported severity names of the
+  # selected out format.
+  # - Code climate: https://docs.codeclimate.com/docs/issues#issue-severity
+  # -   Checkstyle: https://checkstyle.sourceforge.io/property_types.html#severity
+  # -       Github: https://help.github.com/en/actions/reference/workflow-commands-for-github-actions#setting-an-error-message
+  # default-severity: error
+
+  # The default value is false.
+  # If set to true severity-rules regular expressions become case sensitive.
+  case-sensitive: false
+
+  # Default value is empty list.
+  # When a list of severity rules are provided, severity information will be added to lint
+  # issues. Severity rules have the same filtering capability as exclude rules except you
+  # are allowed to specify one matcher per severity rule.
+  # Only affects out formats that support setting severity information.
+  # rules:
+  #   - linters:
+  #     - dupl
+  #     severity: info

.pre-commit-config.yaml

@@ -0,0 +1,27 @@
+# Copyright 2021 IBM Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+repos:
+  - repo: https://github.com/golangci/golangci-lint
+    rev: v1.32.0
+    hooks:
+      - id: golangci-lint
+        entry: golangci-lint run
+        exclude: ^(gen/)
+  - repo: https://github.com/prettier/prettier
+    rev: 2.1.2
+    hooks:
+      - id: prettier
+        exclude: ^(.github/)
+        args:
+          - --no-bracket-spacing