(command.CommandList
  children: [
    (command.Simple
      blame_tok: <set>
      more_env: []
      words: [{<set>} {<-o>} {<errexit>}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <set>
      more_env: []
      words: [{<set>} {<-o>} {<nounset>}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <set>
      more_env: []
      words: [{<set>} {<-o>} {<pipefail>}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <echo>
      more_env: []
      words: [
        {<echo>}
        {
          (DQ 
            <
'kube-push.sh is currently broken; see https://github.com/kubernetes/kubernetes/issues/17397'
            >
          )
        }
      ]
      redirects: []
      do_fork: T
    )
    (command.ControlFlow keyword:<Id.ControlFlow_Exit exit> arg_word:{<1>})
    (command.ShAssignment
      left: <Id.Lit_VarLike 'KUBE_ROOT='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'KUBE_ROOT='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'KUBE_ROOT='> name:KUBE_ROOT)
          op: assign_op.Equal
          rhs: 
            {
              (CommandSub
                left_token: <Id.Left_DollarParen '$('>
                child: 
                  (command.Simple
                    blame_tok: <dirname>
                    more_env: []
                    words: [{<dirname>} {(DQ (${ Id.VSub_Name BASH_SOURCE))}]
                    redirects: []
                    do_fork: T
                  )
                right: <Id.Eof_RParen _>
              ) <'/..'>
            }
        )
      ]
      redirects: []
    )
    (command.If
      if_kw: <Id.KW_If if>
      arms: [
        (IfArm
          keyword: <Id.KW_If if>
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.Simple
                      blame_tok: <Id.Lit_LBracket '['>
                      more_env: []
                      words: [
                        {<Id.Lit_LBracket '['>}
                        {<-f>}
                        {(DQ (${ Id.VSub_Name KUBE_ROOT) <'/cluster/env.sh'>)}
                        {<Id.Lit_RBracket ']'>}
                      ]
                      redirects: []
                      do_fork: T
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          then_kw: <Id.KW_Then then>
          action: [
            (command.Simple
              blame_tok: <source>
              more_env: []
              words: [{<source>} {(DQ (${ Id.VSub_Name KUBE_ROOT) <'/cluster/env.sh'>)}]
              redirects: []
              do_fork: T
            )
          ]
          spids: [100 116]
        )
      ]
      else_action: []
      fi_kw: <Id.KW_Fi fi>
      redirects: []
    )
    (command.Simple
      blame_tok: <source>
      more_env: []
      words: [{<source>} {(DQ (${ Id.VSub_Name KUBE_ROOT) <'/cluster/kube-util.sh'>)}]
      redirects: []
      do_fork: T
    )
    (command.ShFunction
      keyword: <Id.KW_Function function>
      name_tok: <usage>
      name: usage
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace '{'>
          children: [
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [{<echo>} {(DQ (${ Id.VSub_Number 0) <' [-m|-n <node id>] <version>'>)}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [
                {<echo>}
                {
                  (DQ 
                    <
'  Updates Kubernetes binaries. Can be done for all components (by default), master(-m) or specified node(-n).'
                    >
                  )
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [
                {<echo>}
                {(DQ <'  If the version is not specified will try to use local binaries.'>)}
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [{<echo>} {(DQ <'  Warning: upgrading single node is experimental'>)}]
              redirects: []
              do_fork: T
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'push_to_master='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'push_to_master='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'push_to_master='> name:push_to_master)
          op: assign_op.Equal
          rhs: {<false>}
        )
      ]
      redirects: []
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'push_to_node='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'push_to_node='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'push_to_node='> name:push_to_node)
          op: assign_op.Equal
          rhs: {<false>}
        )
      ]
      redirects: []
    )
    (command.WhileUntil
      keyword: <Id.KW_While while>
      cond: 
        (condition.Shell
          commands: [
            (command.Sentence
              child: 
                (command.Simple
                  blame_tok: <getopts>
                  more_env: []
                  words: [{<getopts>} {(DQ <'mn:h'>)} {<opt>}]
                  redirects: []
                  do_fork: T
                )
              terminator: <Id.Op_Semi _>
            )
          ]
        )
      body: 
        (command.DoGroup
          left: <Id.KW_Do do>
          children: [
            (command.Case
              case_kw: <Id.KW_Case case>
              to_match: (case_arg.Word w:{(${ Id.VSub_Name opt)})
              arms_start: <Id.KW_In in>
              arms: [
                (CaseArm
                  left: <m>
                  pattern: (pat.Words words:[{<m>}])
                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.ShAssignment
                      left: <Id.Lit_VarLike 'push_to_master='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 'push_to_master='>
                          lhs: 
                            (sh_lhs_expr.Name
                              left: <Id.Lit_VarLike 'push_to_master='>
                              name: push_to_master
                            )
                          op: assign_op.Equal
                          rhs: {<true>}
                        )
                      ]
                      redirects: []
                    )
                  ]
                  right: <Id.Op_DSemi _>
                )
                (CaseArm
                  left: <n>
                  pattern: (pat.Words words:[{<n>}])
                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.ShAssignment
                      left: <Id.Lit_VarLike 'push_to_node='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 'push_to_node='>
                          lhs: 
                            (sh_lhs_expr.Name
                              left: <Id.Lit_VarLike 'push_to_node='>
                              name: push_to_node
                            )
                          op: assign_op.Equal
                          rhs: {<true>}
                        )
                      ]
                      redirects: []
                    )
                    (command.ShAssignment
                      left: <Id.Lit_VarLike 'node_id='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 'node_id='>
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'node_id='> name:node_id)
                          op: assign_op.Equal
                          rhs: {(DQ ($ Id.VSub_DollarName OPTARG))}
                        )
                      ]
                      redirects: []
                    )
                  ]
                  right: <Id.Op_DSemi _>
                )
                (CaseArm
                  left: <h>
                  pattern: (pat.Words words:[{<h>}])
                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.Simple
                      blame_tok: <usage>
                      more_env: []
                      words: [{<usage>}]
                      redirects: []
                      do_fork: T
                    )
                    (command.ControlFlow
                      keyword: <Id.ControlFlow_Exit exit>
                      arg_word: {<0>}
                    )
                  ]
                  right: <Id.Op_DSemi _>
                )
                (CaseArm
                  left: <Id.Lit_EscapedChar '\\?'>
                  pattern: 
                    (pat.Words
                      words: [{(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\?'> ch:'?')}]
                    )
                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.Simple
                      blame_tok: <echo>
                      more_env: []
                      words: [{<echo>} {(DQ <'Invalid option: -'> ($ Id.VSub_DollarName OPTARG))}]
                      redirects: [(Redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})]
                      do_fork: T
                    )
                    (command.Simple
                      blame_tok: <usage>
                      more_env: []
                      words: [{<usage>}]
                      redirects: []
                      do_fork: T
                    )
                    (command.ControlFlow
                      keyword: <Id.ControlFlow_Exit exit>
                      arg_word: {<1>}
                    )
                  ]
                  right: <Id.Op_DSemi _>
                )
              ]
              arms_end: <Id.KW_Esac esac>
              redirects: []
            )
          ]
          right: <Id.KW_Done done>
        )
      redirects: []
    )
    (command.Simple
      blame_tok: <shift>
      more_env: []
      words: [
        {<shift>}
        {
          (word_part.ArithSub
            left: <Id.Left_DollarDParen '$(('>
            anode: 
              (arith_expr.Binary
                op_id: Id.Arith_Minus
                left: ($ Id.Lit_ArithVarLike OPTIND)
                right: {<Id.Lit_Digits 1>}
              )
            right: <Id.Right_DollarDParen _>
          )
        }
      ]
      redirects: []
      do_fork: T
    )
    (command.If
      if_kw: <Id.KW_If if>
      arms: [
        (IfArm
          keyword: <Id.KW_If if>
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.AndOr
                      children: [
                        (command.DBracket
                          left: <Id.KW_DLeftBracket '[['>
                          expr: 
                            (bool_expr.Binary
                              op_id: Id.BoolBinary_GlobDEqual
                              left: {(DQ (${ Id.VSub_Name push_to_master))}
                              right: {(DQ <true>)}
                            )
                          right: <Id.Lit_DRightBracket ']]'>
                          redirects: []
                        )
                        (command.DBracket
                          left: <Id.KW_DLeftBracket '[['>
                          expr: 
                            (bool_expr.Binary
                              op_id: Id.BoolBinary_GlobDEqual
                              left: {(DQ (${ Id.VSub_Name push_to_node))}
                              right: {(DQ <true>)}
                            )
                          right: <Id.Lit_DRightBracket ']]'>
                          redirects: []
                        )
                      ]
                      ops: [<Id.Op_DAmp _>]
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          then_kw: <Id.KW_Then then>
          action: [
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [{<echo>} {(DQ <'Only one of options -m -n should be specified'>)}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <usage>
              more_env: []
              words: [{<usage>}]
              redirects: []
              do_fork: T
            )
            (command.ControlFlow keyword:<Id.ControlFlow_Exit exit> arg_word:{<1>})
          ]
          spids: [288 325]
        )
      ]
      else_action: []
      fi_kw: <Id.KW_Fi fi>
      redirects: []
    )
    (command.Simple
      blame_tok: <verify-prereqs>
      more_env: []
      words: [{<verify-prereqs>}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <verify-kube-binaries>
      more_env: []
      words: [{<verify-kube-binaries>}]
      redirects: []
      do_fork: T
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'KUBE_VERSION='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'KUBE_VERSION='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'KUBE_VERSION='> name:KUBE_VERSION)
          op: assign_op.Equal
          rhs: 
            {
              (BracedVarSub
                left: <Id.Left_DollarBrace '${'>
                token: <Id.VSub_Number 1>
                var_name: 1
                suffix_op: (suffix_op.Unary op:<Id.VTest_Hyphen _> arg_word:{})
                right: <Id.Right_DollarBrace '}'>
              )
            }
        )
      ]
      redirects: []
    )
    (command.If
      if_kw: <Id.KW_If if>
      arms: [
        (IfArm
          keyword: <Id.KW_If if>
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.AndOr
                      children: [
                        (command.DBracket
                          left: <Id.KW_DLeftBracket '[['>
                          expr: 
                            (bool_expr.Binary
                              op_id: Id.BoolBinary_GlobDEqual
                              left: {(DQ (${ Id.VSub_Name push_to_master))}
                              right: {(DQ <false>)}
                            )
                          right: <Id.Lit_DRightBracket ']]'>
                          redirects: []
                        )
                        (command.DBracket
                          left: <Id.KW_DLeftBracket '[['>
                          expr: 
                            (bool_expr.Binary
                              op_id: Id.BoolBinary_GlobDEqual
                              left: {(DQ (${ Id.VSub_Name push_to_node))}
                              right: {(DQ <false>)}
                            )
                          right: <Id.Lit_DRightBracket ']]'>
                          redirects: []
                        )
                      ]
                      ops: [<Id.Op_DAmp _>]
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          then_kw: <Id.KW_Then then>
          action: [
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [
                {<echo>}
                {
                  (DQ <'Updating cluster using provider: '> ($ Id.VSub_DollarName KUBERNETES_PROVIDER))
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <kube-push>
              more_env: []
              words: [{<kube-push>}]
              redirects: []
              do_fork: T
            )
          ]
          spids: [356 393]
        )
      ]
      else_action: []
      fi_kw: <Id.KW_Fi fi>
      redirects: []
    )
    (command.If
      if_kw: <Id.KW_If if>
      arms: [
        (IfArm
          keyword: <Id.KW_If if>
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.DBracket
                      left: <Id.KW_DLeftBracket '[['>
                      expr: 
                        (bool_expr.Binary
                          op_id: Id.BoolBinary_GlobDEqual
                          left: {(DQ (${ Id.VSub_Name push_to_master))}
                          right: {(DQ <true>)}
                        )
                      right: <Id.Lit_DRightBracket ']]'>
                      redirects: []
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          then_kw: <Id.KW_Then then>
          action: [
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [
                {<echo>}
                {
                  (DQ <'Updating master to version '> 
                    (BracedVarSub
                      left: <Id.Left_DollarBrace '${'>
                      token: <Id.VSub_Name KUBE_VERSION>
                      var_name: KUBE_VERSION
                      suffix_op: (suffix_op.Unary op:<Id.VTest_ColonHyphen _> arg_word:{(DQ <dev>)})
                      right: <Id.Right_DollarBrace '}'>
                    )
                  )
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <prepare-push>
              more_env: []
              words: [{<prepare-push>} {<false>}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <push-master>
              more_env: []
              words: [{<push-master>}]
              redirects: []
              do_fork: T
            )
          ]
          spids: [409 428]
        )
      ]
      else_action: []
      fi_kw: <Id.KW_Fi fi>
      redirects: []
    )
    (command.If
      if_kw: <Id.KW_If if>
      arms: [
        (IfArm
          keyword: <Id.KW_If if>
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.DBracket
                      left: <Id.KW_DLeftBracket '[['>
                      expr: 
                        (bool_expr.Binary
                          op_id: Id.BoolBinary_GlobDEqual
                          left: {(DQ (${ Id.VSub_Name push_to_node))}
                          right: {(DQ <true>)}
                        )
                      right: <Id.Lit_DRightBracket ']]'>
                      redirects: []
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          then_kw: <Id.KW_Then then>
          action: [
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [
                {<echo>}
                {
                  (DQ <'Updating node '> ($ Id.VSub_DollarName node_id) <' to version '> 
                    (BracedVarSub
                      left: <Id.Left_DollarBrace '${'>
                      token: <Id.VSub_Name KUBE_VERSION>
                      var_name: KUBE_VERSION
                      suffix_op: (suffix_op.Unary op:<Id.VTest_ColonHyphen _> arg_word:{(DQ <dev>)})
                      right: <Id.Right_DollarBrace '}'>
                    )
                  )
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <prepare-push>
              more_env: []
              words: [{<prepare-push>} {<true>}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <push-node>
              more_env: []
              words: [{<push-node>} {($ Id.VSub_DollarName node_id)}]
              redirects: []
              do_fork: T
            )
          ]
          spids: [455 474]
        )
      ]
      else_action: []
      fi_kw: <Id.KW_Fi fi>
      redirects: []
    )
    (command.Simple
      blame_tok: <echo>
      more_env: []
      words: [{<echo>} {(DQ <'Validating cluster post-push...'>)}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <Id.Left_DoubleQuote '"'>
      more_env: []
      words: [{(DQ (${ Id.VSub_Name KUBE_ROOT) <'/cluster/validate-cluster.sh'>)}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <echo>
      more_env: []
      words: [{<echo>} {(DQ <Done>)}]
      redirects: []
      do_fork: T
    )
  ]
)