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Docker Install from a package

myos is rhel .rhel is not connect the internet.
manually to install docker,download file “container-selinux-2.99-1.el7_6.noarch.rpm,,docker-ce-18.09.7-3.el7.x86_64.rpm,docker-ce-selinux-17.03.3.ce-1.el7.noarch.rpm”
and use the command “rpm -ivh ~/docker-ce-18.09.7-3.el7.x86_64.rpm ~/docker-ce-cli-18.09.7-3.el7.x86_64.rpm ~/”

警告: ~/docker-ce-18.09.7-3.el7.x86_64.rpm: ヘッダー V4 RSA/SHA512 Signature、鍵 ID 621e9f35: NOKEY
エラー: 依存性の欠如:
container-selinux >= 2.9 は docker-ce-3:18.09.7-3.el7.x86_64 に必要とされています
container-selinux >= 2:2.74 は に必要とされています

what’s the matter? how could to solve.thanks