### Build tree state

"Build tree" is another name for the build definition.
The "build tree state" holds the state for the entire build definition for a single build execution within a session.

The build tree state is managed by the `BuildTreeState` class.
An instance is created at the start of a build execution and discarded at the end of the execution.

### Build state

# This version is from commit 86c4972a9f5f245cfb382c8e1e95f176d968c882.
FROM ${ISTIO_BASE_REGISTRY}/iptables@sha256:863a23b9b2d6f3f282e651fb62a47d28a7bd19356839367654254f5677cea6fa as distroless

# This will build the final image based on either debug or distroless from above
# hadolint ignore=DL3006
FROM ${BASE_DISTRIBUTION:-debug}

LABEL description="Istio CNI plugin installer."

ARG TARGETARCH

The build cache has anonymous read access, so you don't need to authenticate in order to use it. You can use a different build cache node by specifying `-DcacheNode=us` for a build cache node in the US or `-DcacheNode=au` for a build cache node in Australia.

# that would need the Linux binaries (ex. tests).
BUILD_DEPS:=
ifeq ($(IN_BUILD_CONTAINER),1)
  ifneq ($(GOOS_LOCAL),"linux")
    BUILD_DEPS += build-linux
  endif
endif

export ARTIFACTS ?= $(TARGET_OUT)
export JUNIT_OUT ?= $(ARTIFACTS)/junit.xml
export REPO_ROOT := $(shell git rev-parse --show-toplevel)

# Make directories needed by the build system

of Go in effect in the referring file. (The effective version is determined
by the `go` directive in the file's enclosing `go.mod` file, and
by any [`//go:build` constraints](https://pkg.go.dev/cmd/go#hdr-Build_constraints)
in the file.)

For example, it will report a diagnostic for a reference to the
`reflect.TypeFor` function (introduced in go1.22) from a file in a

        * [Build simple API service with Python FastAPI — Part 1](https://dev.to/cuongld2/build-simple-api-service-with-python-fastapi-part-1-581o) by [cuongld2](https://dev.to/cuongld2).
        * [FastAPI + Zeit.co = 🚀](https://paulsec.github.io/posts/fastapi_plus_zeit_serverless_fu/) by [Paul Sec](https://twitter.com/PaulWebSec).