用ubuntu脚本安装kubernetes1.2.1报错roles[${ii}]: unbound variable

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用ubuntu脚本安装kubernetes1.2.1报错：./../cluster/../cluster/ubuntu/util.sh: line 48: roles[${ii}]: unbound variable的解决方案。

报错的原因：是config-default.sh里面 $roles 变量从字符串转数组时候重名引起的赋值错误。

报错的解决方法：修改config-default.sh中第24行的内容(role=${roles:-"ai i i"}) 为(role="ai i i")

官方原始的配置文件：

## Contains configuration values for the Ubuntu cluster# Define all your cluster nodes, MASTER node comes first"# And separated with blank space like <user_1@ip_1> <user_2@ip_2> <user_3@ip_3> export nodes=${nodes:-"vcap@10.10.103.250 vcap@10.10.103.162 vcap@10.10.103.223"}# Define all your nodes role: a(master) or i(minion) or ai(both master and minion), must be the order same role=${roles:-"ai i i"}# If it practically impossible to set an array as an environment variable# from a script, so assume variable is a string then convert it to an arrayexport roles=($role)# Define minion numbersexport NUM_NODES=${NUM_NODES:-3}# define the IP range used for service cluster IPs.

经过自己修改后的配置文件：

## Contains configuration values for the Ubuntu cluster# Define all your cluster nodes, MASTER node comes first"# And separated with blank space like <user_1@ip_1> <user_2@ip_2> <user_3@ip_3> export nodes=${nodes:-"vcap@10.10.103.250 vcap@10.10.103.162 vcap@10.10.103.223"}# Define all your nodes role: a(master) or i(minion) or ai(both master and minion), must be the order same role="ai i i"# If it practically impossible to set an array as an environment variable# from a script, so assume variable is a string then convert it to an arrayexport roles=($role)# Define minion numbersexport NUM_NODES=${NUM_NODES:-3}# define the IP range used for service cluster IPs.

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