feat(docker): added base dockerfile

Signed-off-by: Mateusz Urbanek <[email protected]>

.dockerignore

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+# Binaries for programs and plugins
+bin/
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Go workspace file
+go.work
+
+# Helm resources
+helm/

Dockerfile

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+# Copyright 2023 Linode, LLC
+#
+# 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.
+
+ARG TOOLCHAIN_VERSION=1.21
+
+#########################################################################################
+# Build
+#########################################################################################
+
+# First stage: building the driver executable.
+FROM docker.io/library/golang:${TOOLCHAIN_VERSION} as builder
+
+WORKDIR /work
+
+# Copy the Go Modules manifests.
+COPY go.mod go.mod
+COPY go.sum go.sum
+
+# Cache dep before building and copying source so that we don't need to re-download as
+# much and so that source changes don't invalidate our downloaded layer.
+RUN go mod download
+
+# Copy the go source.
+COPY cmd/ cmd/
+COPY internal/ internal/
+COPY pkg/ pkg/
+COPY Makefile Makefile
+
+# Explicitly set the version, so the make won't try to get it (and fail).
+ENV VERSION="builder"
+
+# Build.
+RUN make build
+
+#########################################################################################
+# Runtime
+#########################################################################################
+
+# Second stage: building final environment for running the executable.
+FROM gcr.io/distroless/static-debian11:latest AS runtime
+
+COPY --from=builder /work/bin/linode-cosi-driver /usr/bin/linode-cosi-driver
+
+# Set volume mount point for app socket.
+VOLUME [ "/var/lib/cosi" ]
+
+# Disable healthcheck.
+HEALTHCHECK NONE
+
+# Add labels
+LABEL name="linode-cosi-driver"
+LABEL description="COSI Driver for Linode Object Storage"
+LABEL vendor="Linode, LLC"
+LABEL license="Apache-2.0"
+LABEL maintainers="Linode COSI Driver Authors"
+
+# Set the entrypoint.
+ENTRYPOINT [ "/usr/bin/linode-cosi-driver" ]
+CMD []