hyperledger · nXtCyberNet · Mar 10, 2026 · Mar 11, 2026 · Mar 11, 2026 · Mar 11, 2026
@@ -0,0 +1,56 @@
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+#Stage 1 – Builder image
+FROM golang:1.23-alpine AS builder
+
+RUN apk add --no-cache git
+
+WORKDIR /build
+
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY src/ ./src/
+RUN CGO_ENABLED=0 go build -v -o /build/chaincode ./src/...
+
+
+# Stage 2 – Chaincode-as-a-Service (CaaS) image
+FROM alpine:3.20 AS ccaas
+
+ARG TARGETARCH
+ARG CC_SERVER_PORT=9999
+
+# tini gives us proper PID-1 signal handling
+ENV TINI_VERSION=v0.19.0
+ADD https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini-static-${TARGETARCH} /tini
+RUN chmod +x /tini
+
+RUN addgroup -S chaincode && adduser -S chaincode -G chaincode
+WORKDIR /home/chaincode
+
+COPY --from=builder /build/chaincode ./chaincode
+COPY docker/docker-entrypoint.sh ./docker-entrypoint.sh
+RUN chmod +x ./docker-entrypoint.sh
+
+ENV PORT=${CC_SERVER_PORT}
+EXPOSE ${CC_SERVER_PORT}
+
+USER chaincode
+ENTRYPOINT ["/tini", "--", "./docker-entrypoint.sh"]
+
+
+
+# Stage 3 – k8s builder image
+FROM alpine:3.20 AS k8s
+
+RUN addgroup -S chaincode && adduser -S chaincode -G chaincode
+WORKDIR /home/chaincode
+
+COPY --from=builder /build/chaincode ./chaincode
+COPY docker/docker-entrypoint.sh ./docker-entrypoint.sh
+RUN chmod +x ./docker-entrypoint.sh
+
+USER chaincode
+CMD ["./docker-entrypoint.sh"]
@@ -0,0 +1,11 @@
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+---
+smart_contract_name: "asset-transfer"
+smart_contract_version: "1.0.0"
+smart_contract_sequence: 1
+smart_contract_package: "asset-transfer.tgz"
+# smart_contract_constructor: ""
+smart_contract_endorsement_policy: ""
+smart_contract_collections_file: ""
@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+: "${CORE_PEER_TLS_ENABLED:=false}"
+
+if [[ ! -v CHAINCODE_SERVER_ADDRESS ]]; then
+    # Legacy peer-managed mode: binary acts as a regular chaincode process.
+    exec ./chaincode --peer.address "${CORE_PEER_ADDRESS}"
+
+elif [[ "${CORE_PEER_TLS_ENABLED,,}" == "true" ]]; then
+    # CaaS + TLS: fabric-chaincode-go/v2 reads CHAINCODE_SERVER_ADDRESS,
+    # CORE_CHAINCODE_ID_NAME, and TLS vars directly as env vars.
+    exec env \
+        CORE_CHAINCODE_ID_NAME="${CHAINCODE_ID}" \
+        CHAINCODE_SERVER_ADDRESS="${CHAINCODE_SERVER_ADDRESS}" \
+        CORE_PEER_TLS_ENABLED=true \
+        CORE_PEER_TLS_ROOTCERT_FILE="${CHAINCODE_TLS_KEY:-/hyperledger/privatekey.pem}" \
+        CORE_TLS_CLIENT_KEY_FILE="${CHAINCODE_TLS_CERT:-/hyperledger/cert.pem}" \
+        CORE_TLS_CLIENT_CERT_FILE="${CHAINCODE_TLS_CLIENT_CACERT:-/hyperledger/rootcert.pem}" \
+        ./chaincode
+
+else
+    # CaaS without TLS: fabric-chaincode-go/v2 uses CHAINCODE_SERVER_ADDRESS
+    # and CORE_CHAINCODE_ID_NAME env vars to start the gRPC server.
+    exec env \
+        CORE_CHAINCODE_ID_NAME="${CHAINCODE_ID}" \
+        CHAINCODE_SERVER_ADDRESS="${CHAINCODE_SERVER_ADDRESS}" \
+        ./chaincode
+fi
@@ -0,0 +1,30 @@
+module asset
+
+go 1.23.0
+
+require (
+	github.com/hyperledger/fabric-chaincode-go/v2 v2.0.0
+	github.com/hyperledger/fabric-contract-api-go/v2 v2.2.0
+	github.com/hyperledger/fabric-protos-go-apiv2 v0.3.4
+	google.golang.org/protobuf v1.36.1
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/go-openapi/jsonpointer v0.21.0 // indirect
+	github.com/go-openapi/jsonreference v0.21.0 // indirect
+	github.com/go-openapi/spec v0.21.0 // indirect
+	github.com/go-openapi/swag v0.23.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect
+	github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
+	github.com/xeipuuv/gojsonschema v1.2.0 // indirect
+	golang.org/x/net v0.28.0 // indirect
+	golang.org/x/sys v0.24.0 // indirect
+	golang.org/x/text v0.17.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240814211410-ddb44dafa142 // indirect
+	google.golang.org/grpc v1.67.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
@@ -0,0 +1,61 @@
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@@ -0,0 +1,14 @@
+package main
+
+type OwnerIdentifier struct {
+	Org  string `json:"org"`
+	User string `json:"user"`
+}
+
+type Asset struct {
+	AppraisedValue int    `json:"AppraisedValue"`
+	Color          string `json:"Color"`
+	ID             string `json:"ID"`
+	Owner          string `json:"Owner"` // JSON-encoded OwnerIdentifier
+	Size           int    `json:"Size"`
+}