From dae35ccbe7ff8b8760d86be0f52fed686546b1af Mon Sep 17 00:00:00 2001
From: DmitriyLewen <91113035+DmitriyLewen@users.noreply.github.com>
Date: Wed, 4 Dec 2024 12:10:45 +0600
Subject: [PATCH] docs: update info about building trivy-db in README.md (#476)

---
 Dockerfile | 14 --------------
 README.md  | 19 +++++++++++++++----
 2 files changed, 15 insertions(+), 18 deletions(-)
 delete mode 100644 Dockerfile

diff --git a/Dockerfile b/Dockerfile
deleted file mode 100644
index 65645068..00000000
--- a/Dockerfile
+++ /dev/null
@@ -1,14 +0,0 @@
-FROM golang:1.17-alpine as builder
-
-ARG DB_TYPE=trivy
-
-WORKDIR /build
-COPY . /build
-SHELL ["/bin/sh", "-o", "pipefail", "-c"]
-
-RUN apk --no-cache add make gzip
-
-RUN DB_TYPE=${DB_TYPE} make db-all
-
-FROM scratch
-COPY --from=builder /build/assets/trivy*.db.gz .
diff --git a/README.md b/README.md
index e07070a1..2687e804 100644
--- a/README.md
+++ b/README.md
@@ -49,11 +49,22 @@ GLOBAL OPTIONS:
 ```
 
 ### Building the DB
-You can utilize `make db-all` to build the database, the DB artifact is outputted to the assets folder.
-
-Alternatively Docker is supported, you can run `docker build . -t trivy-db`.
+To build trivy-db locally, you can use the following order of commands from the Makefile:
+```bash
+make db-fetch-langs db-fetch-vuln-list // To download all advisories and other required files (`./cache` dir by default)
+make build // Build `trivy-db` binary
+make db-build // Build database (`./out` dir by default)
+make db-compact // Compact database (`./assets` dir by default)
+make db-compress // Compress database into `db.tar.gz` file
+```
 
-If you want to build a trivy integration test DB, please run `make create-test-db`
+To build trivy-db image and push into registry, you need to use [Oras CLI](https://oras.land/cli/).
+For example for `ghcr`:
+```bash
+./oras push --artifact-type application/vnd.aquasec.trivy.config.v1+json \
+"ghcr.io/aquasecurity/trivy-db:2" \
+db.tar.gz:application/vnd.aquasec.trivy.db.layer.v1.tar+gzip
+```
 
 ## Update interval
 Trivy DB is built every 6 hours.