https://docs.docker.com/engine/reference/commandline/login/#credentials-store

+ docker buildx build --pull --push --platform linux/amd64,linux/arm64 -t openmrs/openmrs-reference-application-3-gateway:nightly -t openmrs/openmrs-reference-application-3-gateway:dev3 gateway/
#1 [internal] load build definition from Dockerfile
#1 transferring dockerfile:
#1 transferring dockerfile: 174B done
#1 DONE 0.1s

#2 [internal] load .dockerignore
#2 transferring context: 2B done
#2 DONE 0.1s

#3 [linux/amd64 internal] load metadata for docker.io/library/nginx:1.23-alpine
#3 ...

#4 [auth] library/nginx:pull token for registry-1.docker.io
#4 DONE 0.0s

#3 [linux/amd64 internal] load metadata for docker.io/library/nginx:1.23-alpine
#3 DONE 0.3s

#5 [linux/arm64 internal] load metadata for docker.io/library/nginx:1.23-alpine
#5 DONE 0.4s

#6 [internal] load build context
#6 transferring context: 3.12kB done
#6 DONE 0.1s

#7 [linux/amd64 1/3] FROM docker.io/library/nginx:1.23-alpine@sha256:6f94b7f4208b5d5391246c83a96246ca204f15eaf7e636cefda4e6348c8f6101
#7 resolve docker.io/library/nginx:1.23-alpine@sha256:6f94b7f4208b5d5391246c83a96246ca204f15eaf7e636cefda4e6348c8f6101 0.1s done
#7 CACHED

#8 [linux/arm64 1/3] FROM docker.io/library/nginx:1.23-alpine@sha256:6f94b7f4208b5d5391246c83a96246ca204f15eaf7e636cefda4e6348c8f6101
#8 resolve docker.io/library/nginx:1.23-alpine@sha256:6f94b7f4208b5d5391246c83a96246ca204f15eaf7e636cefda4e6348c8f6101 0.1s done
#8 ...

#9 [linux/amd64 2/3] COPY nginx.conf /etc/nginx/nginx.conf
#9 DONE 0.2s

#10 [linux/amd64 3/3] COPY default.conf.template /etc/nginx/templates/
#10 DONE 0.2s

#8 [linux/arm64 1/3] FROM docker.io/library/nginx:1.23-alpine@sha256:6f94b7f4208b5d5391246c83a96246ca204f15eaf7e636cefda4e6348c8f6101
#8 DONE 0.5s

#8 [linux/arm64 1/3] FROM docker.io/library/nginx:1.23-alpine@sha256:6f94b7f4208b5d5391246c83a96246ca204f15eaf7e636cefda4e6348c8f6101
#8 sha256:cb43772f105ccb7f41699d9dfba8fa39082c79b0e45a9475818b44048c4b17bc 1.40kB / 1.40kB 0.1s done
#8 sha256:d13a96348a36b0689a63ce39a602a9066208635189c700bdc41228fdf2a3dbad 772B / 772B 0.1s done
#8 sha256:d3e5766ff842e80973849bd89ebd1b63392b96c93582b4c4914dcd651db1d759 957B / 957B 0.1s done
#8 sha256:f5c97f1e648ebe5ff40ca4f56083cf0ddcc0e29965a4bbe43a49ec03d07467c6 10.99MB / 10.99MB 0.2s done
#8 sha256:9ae55bcc44f8ba7efe2c9c7098d06e9ab75847c2bbe407225871ca3812ee1c7b 625B / 625B 0.1s done
#8 sha256:5043da66dd81959b54e5a5dbf6276d81b69f3c9da851f1da0b32f30693bad342 1.79MB / 1.79MB 0.1s done
#8 sha256:af6eaf76a39c2d3e7e0b8a0420486e3df33c4027d696c076a99a3d0ac09026af 3.26MB / 3.26MB 0.1s done
#8 extracting sha256:af6eaf76a39c2d3e7e0b8a0420486e3df33c4027d696c076a99a3d0ac09026af
#8 extracting sha256:af6eaf76a39c2d3e7e0b8a0420486e3df33c4027d696c076a99a3d0ac09026af 0.1s done
#8 DONE 0.9s

#8 [linux/arm64 1/3] FROM docker.io/library/nginx:1.23-alpine@sha256:6f94b7f4208b5d5391246c83a96246ca204f15eaf7e636cefda4e6348c8f6101
#8 extracting sha256:5043da66dd81959b54e5a5dbf6276d81b69f3c9da851f1da0b32f30693bad342
#8 extracting sha256:5043da66dd81959b54e5a5dbf6276d81b69f3c9da851f1da0b32f30693bad342 0.2s done
#8 extracting sha256:9ae55bcc44f8ba7efe2c9c7098d06e9ab75847c2bbe407225871ca3812ee1c7b 0.0s done
#8 extracting sha256:d3e5766ff842e80973849bd89ebd1b63392b96c93582b4c4914dcd651db1d759 0.0s done
#8 extracting sha256:d13a96348a36b0689a63ce39a602a9066208635189c700bdc41228fdf2a3dbad 0.0s done
#8 DONE 1.2s

#8 [linux/arm64 1/3] FROM docker.io/library/nginx:1.23-alpine@sha256:6f94b7f4208b5d5391246c83a96246ca204f15eaf7e636cefda4e6348c8f6101
#8 extracting sha256:cb43772f105ccb7f41699d9dfba8fa39082c79b0e45a9475818b44048c4b17bc 0.0s done
#8 extracting sha256:f5c97f1e648ebe5ff40ca4f56083cf0ddcc0e29965a4bbe43a49ec03d07467c6
#8 extracting sha256:f5c97f1e648ebe5ff40ca4f56083cf0ddcc0e29965a4bbe43a49ec03d07467c6 0.3s done
#8 DONE 1.6s

#11 [linux/arm64 2/3] COPY nginx.conf /etc/nginx/nginx.conf
#11 DONE 0.1s

#12 [linux/arm64 3/3] COPY default.conf.template /etc/nginx/templates/
#12 DONE 0.1s

#13 exporting to image
#13 exporting layers
#13 exporting layers 0.4s done
#13 exporting manifest sha256:2e4a06bc5617d921e1ac60e98554311cd8791ce93dccadbf56e4793b7f14314c 0.0s done
#13 exporting config sha256:5a7a16fdc93b4bbeec5d17c485ca24692de2286feeee0f491432a0bb84d89b37 0.0s done
#13 exporting manifest sha256:a8e7959e6f5b35818fb10384ae8ce1c4724c1764d12234b3481884dcc869a229 0.0s done
#13 exporting config sha256:04db5f3f0c7040a75a2a01c65ea8e12f38a381bf96914fc4a8b2339790a0da50
#13 ...

#14 [auth] openmrs/openmrs-reference-application-3-gateway:pull,push token for registry-1.docker.io
#14 DONE 0.0s

#13 exporting to image
#13 exporting config sha256:04db5f3f0c7040a75a2a01c65ea8e12f38a381bf96914fc4a8b2339790a0da50 0.1s done
#13 exporting manifest list sha256:3032df8dc1b6f85770965c8e85bdac9eaeb20947ab3b36817f6dbd95fd91870f 0.0s done
#13 pushing layers
#13 pushing layers 1.6s done
#13 pushing manifest for docker.io/openmrs/openmrs-reference-application-3-gateway:nightly@sha256:3032df8dc1b6f85770965c8e85bdac9eaeb20947ab3b36817f6dbd95fd91870f
#13 pushing manifest for docker.io/openmrs/openmrs-reference-application-3-gateway:nightly@sha256:3032df8dc1b6f85770965c8e85bdac9eaeb20947ab3b36817f6dbd95fd91870f 0.9s done
#13 pushing layers 1.0s done
#13 pushing manifest for docker.io/openmrs/openmrs-reference-application-3-gateway:dev3@sha256:3032df8dc1b6f85770965c8e85bdac9eaeb20947ab3b36817f6dbd95fd91870f
#13 pushing manifest for docker.io/openmrs/openmrs-reference-application-3-gateway:dev3@sha256:3032df8dc1b6f85770965c8e85bdac9eaeb20947ab3b36817f6dbd95fd91870f 0.3s done
#13 DONE 4.5s