看完此文後，你應該會感慨，能遇到下面鏈接中的腳本真是相見恨晚，在安裝docker過程中，各種疑難雜症都給羅列出來了！
前言
之前在imx6q的板子上整docker過程中，把網都快爬穿了，過程中有各種奇形怪狀的問題，好在最後都解決了。寫此文的目的第一是做個總結，第二也爲和我一樣對新事物的好奇而又執着的小夥伴們少走些彎路。不然的話，遇到一個問題又要耗費大量時間來定位問題。人生苦短，沒必要浪費自己的時間！
好了，不廢話了，直接進入主題吧--->
常見問題：
1、Error response from daemon: failed to create endpoint (...) on network bridge: failed to add the host (veth1d85371) <=> sandbox (vethbc264f6) pair interfaces: operation not supported.
2、docker can not run in armv7l
解決方法：Device Drivers -> Network device support -> Network core driver support
測試環境
CPU：iMX6q
kernel：4.1.15
Ubuntu：16.04
架構：armv7l
Ubuntu安裝Docker要求
說明：Docker 要求 Ubuntu 系統的內核版本高於 3.10
來源：https://docs.docker.com/install/linux/docker-ce/ubuntu/
【重點】檢查當前設備是否具備安裝docker的配置要求：
腳本來源：https://github.com/moby/moby/blob/master/contrib/check-config.sh
步驟1：將上面的腳本複製到當前設備上；
步驟2：給腳本賦予可執行權限，並執行它；
步驟3：運行腳本後會出現這樣的檢測結果：
root@ubuntu-arm:~# ./check-config.sh
info: reading kernel config from /proc/config.gz ...
Generally Necessary:
- cgroup hierarchy: properly mounted [/sys/fs/cgroup]
- CONFIG_NAMESPACES: enabled
- CONFIG_NET_NS: enabled
- CONFIG_PID_NS: enabled
- CONFIG_IPC_NS: enabled
- CONFIG_UTS_NS: enabled
- CONFIG_CGROUPS: enabled
- CONFIG_CGROUP_CPUACCT: enabled
- CONFIG_CGROUP_DEVICE: enabled
- CONFIG_CGROUP_FREEZER: enabled
- CONFIG_CGROUP_SCHED: enabled
- CONFIG_CPUSETS: enabled
- CONFIG_MEMCG: enabled
- CONFIG_KEYS: enabled
- CONFIG_VETH: enabled
- CONFIG_BRIDGE: enabled
- CONFIG_BRIDGE_NETFILTER: enabled
- CONFIG_NF_NAT_IPV4: enabled
- CONFIG_IP_NF_FILTER: enabled
- CONFIG_IP_NF_TARGET_MASQUERADE: enabled
- CONFIG_NETFILTER_XT_MATCH_ADDRTYPE: enabled
- CONFIG_NETFILTER_XT_MATCH_CONNTRACK: enabled
- CONFIG_NETFILTER_XT_MATCH_IPVS: enabled
- CONFIG_IP_NF_NAT: enabled
- CONFIG_NF_NAT: enabled
- CONFIG_NF_NAT_NEEDED: enabled
- CONFIG_POSIX_MQUEUE: enabled
- CONFIG_DEVPTS_MULTIPLE_INSTANCES: enabled
Optional Features:
- CONFIG_USER_NS: enabled
- CONFIG_SECCOMP: enabled
- CONFIG_CGROUP_PIDS: missing
- CONFIG_MEMCG_SWAP: enabled
- CONFIG_MEMCG_SWAP_ENABLED: enabled
(cgroup swap accounting is currently enabled)
- CONFIG_MEMCG_KMEM: enabled
- CONFIG_BLK_CGROUP: enabled
- CONFIG_BLK_DEV_THROTTLING: enabled
- CONFIG_IOSCHED_CFQ: enabled
- CONFIG_CFQ_GROUP_IOSCHED: enabled
- CONFIG_CGROUP_PERF: enabled
- CONFIG_CGROUP_HUGETLB: missing
- CONFIG_NET_CLS_CGROUP: enabled
- CONFIG_CGROUP_NET_PRIO: enabled
- CONFIG_CFS_BANDWIDTH: enabled
- CONFIG_FAIR_GROUP_SCHED: enabled
- CONFIG_RT_GROUP_SCHED: enabled
- CONFIG_IP_NF_TARGET_REDIRECT: enabled
- CONFIG_IP_VS: enabled
- CONFIG_IP_VS_NFCT: enabled
- CONFIG_IP_VS_PROTO_TCP: enabled
- CONFIG_IP_VS_PROTO_UDP: enabled
- CONFIG_IP_VS_RR: enabled
- CONFIG_EXT3_FS: enabled
- CONFIG_EXT3_FS_XATTR: enabled
- CONFIG_EXT3_FS_POSIX_ACL: enabled
- CONFIG_EXT3_FS_SECURITY: enabled
- CONFIG_EXT4_FS: enabled
- CONFIG_EXT4_FS_POSIX_ACL: enabled
- CONFIG_EXT4_FS_SECURITY: enabled
- Network Drivers:
- "overlay":
- CONFIG_VXLAN: enabled
Optional (for encrypted networks):
- CONFIG_CRYPTO: enabled
- CONFIG_CRYPTO_AEAD: enabled
- CONFIG_CRYPTO_GCM: enabled
- CONFIG_CRYPTO_SEQIV: enabled
- CONFIG_CRYPTO_GHASH: enabled
- CONFIG_XFRM: enabled
- CONFIG_XFRM_USER: enabled
- CONFIG_XFRM_ALGO: enabled
- CONFIG_INET_ESP: enabled
- CONFIG_INET_XFRM_MODE_TRANSPORT: enabled
- "ipvlan":
- CONFIG_IPVLAN: enabled
- "macvlan":
- CONFIG_MACVLAN: enabled
- CONFIG_DUMMY: enabled
- "ftp,tftp client in container":
- CONFIG_NF_NAT_FTP: enabled
- CONFIG_NF_CONNTRACK_FTP: enabled
- CONFIG_NF_NAT_TFTP: enabled
- CONFIG_NF_CONNTRACK_TFTP: enabled
- Storage Drivers:
- "aufs":
- CONFIG_AUFS_FS: missing
- "btrfs":
- CONFIG_BTRFS_FS: enabled
- CONFIG_BTRFS_FS_POSIX_ACL: enabled
- "devicemapper":
- CONFIG_BLK_DEV_DM: enabled
- CONFIG_DM_THIN_PROVISIONING: enabled
- "overlay":
- CONFIG_OVERLAY_FS: enabled
- "zfs":
- /dev/zfs: missing
- zfs command: missing
- zpool command: missing
Limits:
- /proc/sys/kernel/keys/root_maxkeys: 1000000
步驟4：如果上面的結果中有異常，那麼現在就可以去內核中開啓相應的選項吧。
如果幸運，你的問題應該解決了。
祝你成功！Y(^_^)Y
[參考鏈接]：https://github.com/moby/moby/issues/27426