buildx failed with: ERROR: failed to solve: process "/bin/sh -c rpm -qa --queryformat \"%{NAME}\\n\" | sort > installed \t&& microdnf --nodocs install -y shadow-utils diffutils \t&& groupadd --system --gid 101 nginx \t&& useradd --system --gid nginx --no-create-home --home-dir /nonexistent --comment \"nginx user\" --shell /bin/false --uid 101 nginx \t&& rpm -qa --queryformat \"%{NAME}\\n\" | sort > new \t&& microdnf remove -y $(comm -13 installed new) \t&& rpm --import https://nginx.org/keys/nginx_signing.key \t&& printf \"%s\\n\" \"[nginx]\" \"name=nginx repo\" \t\"baseurl=https://nginx.org/packages/mainline/centos/9/\\$basearch/\" \t\"gpgcheck=1\" \"enabled=1\" \"module_hotfixes=true\" > /etc/yum.repos.d/nginx.repo \t&& nginxPackages=\" \tnginx-${NGINX_VERSION} \tnginx-module-xslt-${NGINX_VERSION} \tnginx-module-image-filter-${NGINX_VERSION} \tnginx-module-njs-${NGINX_VERSION}+${NJS_VERSION} \t\" \t&& microdnf install -y ${nginxPackages} \t&& rm /etc/yum.repos.d/nginx.repo \t&& microdnf clean all" did not complete successfully: exit code: 1

LegacyKeyValueFormat: "ENV key=value" should be used instead of legacy "ENV key value" format More info: https://docs.docker.com/go/dockerfile/rule/legacy-key-value-format/